question: In Avicenna 's work `` Floating Man '' , what is the core of a human being ?
answer: the knowledge that `` I am ''
turker_answer: In Avicenna 's work `` Floating Man '' , knowledge that `` I am '' is the core of a human being .
rule-based: In Avicenna 's work `` Floating Man '' , the core of a human being is the knowledge that `` I am .