Last updated11 Apr 2026, 3:22 pm SGT
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Battle replay

Qwen3-235B vs Sonar Pro

tree_0014 · Video rental shop

Qwen3-235B · Better
NONE
2
Rounds
2 - 0
Final Score
111,354
Tokens
$1.11
Cost
Onboarding R3
Mode
← Back to battles·View source page·onboarding_battles/R3_Qwen3-235b-a22b_ppl-sonar-pro-high_tree_0014.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 2

Round Context

Depth 2Width 2Increase width
Logic Chain
Root

Video rental shop

Step 2

In a Copyright Ruling, the Legacy of the Betamax

Question

Identify the 2013 Supreme Court case involving a student's textbook resale business that reaffirmed the legal doctrine allowing video rental companies like Blockbuster to exist. In your answer, name this 2013 case and the foundational 1984 'Betamax' case it parallels. Furthermore, drawing on analysis of the 2013 ruling's implications for the digital economy, identify the specific Massachusetts-based startup mentioned as operating a 'secondhand market for digital content' while facing a lawsuit from Capitol Records, and describe the specific intellectual property actions Amazon and Apple took regarding similar digital marketplaces as noted in the context of this debate.

Answer length: 200-300 words.

Show hidden checklists
Depth checklist
  • 2013 Case: Kirtsaeng v. John Wiley & Sons (affirmed First Sale doctrine for imports)
  • 1984 Case: Sony Corp. of America v. Universal City Studios, Inc. (Betamax case)
Width checklist
  • Startup Name: ReDigi
  • Startup Legal Status: Sued by Capitol Records (judge refused injunction/decision pending)
  • Amazon Action: Obtained a patent for a secondhand digital marketplace
  • Apple Action: Applied for a patent for a secondhand digital marketplace
Examiner rationale

The question uses Deep logic by describing the 2013 case via its subject (student/textbooks) and its legal impact on the video rental industry (First Sale Doctrine) rather than naming it directly. It uses Wide logic by requiring the retrieval of specific, scattered details about digital market competitors (ReDigi, Amazon, Apple) mentioned within the analysis of the legal ruling.

Judgment

Better
WIDE
Score 1 - 0

Both agents correctly identified the core entities: the 2013 case (*Kirtsaeng*), the 1984 case (*Sony/Betamax*), and the startup (*ReDigi*). However, Agent A is the winner based on the specific constraint regarding 'intellectual property actions' taken by Amazon and Apple. The ground truth (and the context of the 2013 debate) is that both companies sought **patents** for digital resale marketplaces. Agent A correctly identified Amazon's action as filing a patent. Agent B failed this section, incorrectly stating Amazon 'launched a prototype' (hallucination) and citing Apple's Terms of Service rather than their patent application. Although Agent A also hallucinated (claiming Apple acquired ReDigi), it is preferred for correctly identifying the 'patent' nature of the corporate actions, whereas Agent B missed the IP/Patent context entirely.

Evolution step
Determining Next Step...
WINNER is A. Targeting Loser Failure: WIDE.
Action: Wide+1 (Increase Context Width)

Qwen3-235B

Alibaba

75.2s
The 2013 Supreme Court case involving a student's textbook resale business that reaffirmed the first-sale doctrine is *Kirtsaeng v. John Wiley & Sons, Inc.* This decision reinforced the principle that legally purchased copyrighted goods, whether domestic or foreign, can be resold without the copyright holder’s permission. It parallels the foundational 1984 *Sony Corp v. Universal City Studios* ("Betamax") case, which established that consumers could legally record television programs for personal use, laying the groundwork for time-shifting and, by extension, the legality of technologies enabling media consumption like VCRs and later, digital recorders [1]. The *Kirtsaeng* ruling had significant implications for the digital economy, particularly concerning digital content resale. Analysts noted its potential to enable secondary digital markets, though the decision primarily applied to physical goods. A Massachusetts-based startup, ReDigi, attempted to create a "secondhand market for digital content" by allowing users to resell digital music files. However, it faced a lawsuit from Capitol Records, which argued that transferring digital files constituted unauthorized reproduction, a claim upheld in court [2]. In response to legal uncertainties around digital resale, Amazon and Apple explored but ultimately limited their digital marketplace initiatives. Amazon filed a patent for a digital resale system but never launched a broad platform, while Apple acquired ReDigi’s technology but did not implement a consumer-facing digital resale service. Both companies avoided full-scale digital secondhand markets, likely due to ongoing intellectual property risks and lack of clear legal extension of the first-sale doctrine to digital files [3]. ## References [1] Oyez, "Kirtsaeng v. John Wiley & Sons, Inc.," https://www.oyez.org/cases/2012/11-697 [2] Ars Technica, "ReDigi loses copyright case over used digital music," https://arstechnica.com/tech-policy/2013/03/redigi-loses-copyright-case-over-used-digital-music/ [3] MIT Technology Review, "Amazon’s Digital Resale Patent," https://www.technologyreview.com/2013/01/25/175263/amazon-wants-to-let-you-resell-digital-files/

Sonar Pro

Perplexity

5.1s
**Kirtsaeng v. John Wiley & Sons, Inc.** (2013) is the Supreme Court case involving a student's resale of imported textbooks, which reaffirmed the **first sale doctrine** under 17 U.S.C. §109(a), permitting owners to resell lawfully made copies without copyright holder permission regardless of foreign manufacture.[1][2][3] This ruling parallels the foundational **Sony Corp. of America v. Universal City Studios, Inc.** (1984), known as the "Betamax" case, where the Court upheld time-shifting VCR recordings as non-infringing under fair use, enabling video rental businesses like Blockbuster by protecting consumer ownership and secondary markets.[1][2] The Kirtsaeng decision extended first sale globally, impacting the digital economy by bolstering arguments for resale of digital goods despite lacking physical copies.[2] A Massachusetts-based startup, **ReDigi**, operated a "secondhand market for digital content" and faced a lawsuit from Capitol Records for facilitating unauthorized resale of digital music files, claiming infringement of reproduction and distribution rights.[5] In response, **Amazon** launched the Digital Music Resale Marketplace prototype but later abandoned it amid legal pressures, while **Apple** imposed contractual restrictions in iTunes terms prohibiting any resale or transfer of purchased digital tracks.[5] These actions highlight tensions: Kirtsaeng supported physical resale (e.g., gray-market imports), but digital platforms faced barriers due to licensing and technological locks, limiting secondary markets for e-books and MP3s.[2][5] (248 words) ## References [1] https://supreme.justia.com/cases/federal/us/568/519/ [2] https://www.insidehighered.com/news/2013/03/20/supreme-court-sides-against-textbook-publishers-resale-imported-works [3] https://www.law.cornell.edu/supct/cert/11-697 [5] https://www.latimes.com/business/la-xpm-2013-mar-19-la-fi-court-copyright-20130320-story.html