Question: Would Mark be Scott Kelly's slave in Yoruba society?, Answer:Yes, Description of Twin: One of two offspring produced in the same pregnancy. Use with P31 on items for one twin, Fact1: Mark and Scott Kelly are twin astronauts., Fact2: Mark Kelly is six minutes older than Scott., Fact3: In Yoruba society, the elder twin is referred to as, "slave to the second twin".
Step1: What is the relationship between Mark and Scott Kelly?, Step2: What customs does Yoruba society have regarding #1?, Step3: Does Mark Kelly meet the parameters for a slave in #2?, Wikipedia page for step 1: Mark Kelly, Wikipedia page for step 2: Yoruba Society, Wikipedia page for step 3: , not_definitive_answer: False, incorrect_answer: False