choices.label: A B C D
choices.text: milk:milk powder:protein sorghum:liquor:alcohol cotton:towel:cotton thread petroleum:gasoline:kerosene
explanation: the raw material of "potato chips" is "potatoes", and "potatoes" and "potato chips" are part of "starch". the raw material of "milk powder" is "milk", and "milk" and "milk powder" are part of "protein". the raw material of "liquor" is "sorghum", and "sorghum" does not contain "alcohol". the raw material of "towel" is "cotton", and the raw material of "cotton thread" is "cotton". the raw material for refining "gasoline" is "petroleum", and "gasoline" and "kerosene" are one category.
relation: potatoes crisps R3.7
relation: milk milk powder R3.7
relation: sorghum liquor R3.7
relation: cotton towel R3.7
relation: cotton cotton thread R3.7
relation: petroleum gasoline R3.7
relation: gasoline kerosene R2.4