question: eggs:cake
choices.label: A B C D
choices.text: lead:pencil cement:cement road shoes:laces apple:apple pie
explanation: the raw material of the "cake" is "egg", and the "cake" is food. the components of "pencil" contain "lead". the raw material of "cement road" is "cement", and "cement road" is not food. the "shoe" component contains the "laces". "apple" is the raw material for making "apple pie", and "apple pie" is a food.
relation: eggs cake R3.7
relation: lead pencil R2.3
relation: laces shoes R2.3
relation: apple apple pie R3.7