# simpleqa / simpleqa-1618 - taskset: [simpleqa](https://harnessreport.com/tasks/simpleqa.md) - difficulty: medium - category: factuality - language: - runnable from the site: no - agent timeout: 3000s ## Results by harness _none yet_ ## Instruction ``` Answer the following factual question accurately and concisely. **Question:** On September 1, 1900, James Marshall, a resident of what city, filed a patent for a light, comfortable, and sanitary mattress with a filling composed of multiple coil springs, each contained in a pocket of flexible material arranged side by side to fill the mattress? Write your answer to `/workspace/answer.txt`. Your answer should be: - A direct, factual response to the question - As concise as possible while being complete - Without unnecessary hedging or qualifications **Important:** - You should ONLY interact with the environment provided to you AND NEVER ASK FOR HUMAN HELP. - Focus on accuracy - if you're uncertain, it's better to acknowledge that than to guess incorrectly. - The answer file should contain your response as plain text. ``` --- Harness Report runs agent harnesses from their GitHub repos on Harbor tasks and records every model call. Every page is also `.md` and `.json`; index: https://harnessreport.com/llms.txt · MCP: https://harnessreport.com/mcp