question: invention:patent:protection
choices.label: A B C D
choices.text: formulation:policy:implementation choices:employment:chance climb:mountain:map driving:travel:condition
explanation: "patent" will be "invented", and the "invention" can modify the "patent". "policy" will be "formulated", and the "formulated" can modify "policy". "chance" will be "chosen", "chance" does not modify "choice". "mountain" will be "climbed", and "map" is a tool needed to "climb the mountain", which has no obvious logical relationship with the query. "traveling by car" needs to check "road condition", and "road condition" does not modify "driving".