question: night:street lights
choices.label: A B C D
choices.text: boat:lighthouse platform:signpost Christmas: Christmas tree dusk:farewell
explanation: to have "street lights", there must be "night", and "night" is a specific time period. the "lighthouse" can point the way to the "boat", and the "boat" is not a specific time period. "signpost" are road traffic signs, and there is no obvious logical relationship between "signpost" and "platforms". to have "christmas trees", there must be a "christmas", and "christmas" is a specific time period. "dusk" and "farewell" have no obvious logical relationship.
relation: night street lights R5.4
relation: Christmas  Christmas tree R5.4