question: Why do we know about Howie Choset , according to the passage ?
answer: He also made snake robots for search , rescue and exploration .
turker_answer: What we know about Howie Choset according to the passage is that he also made snake robots for search , rescue and exploration .
rule-based: We know about Howie Choset , according to the passage because he also made snake robots for search , rescue and exploration .