instruction:
In this task, you're given an input that contains two words, and your task is to predict the correct preposition that connects these two words. Predict the preposition that explicitly conveys both words' meaning, e.g., Word1: king 
 Word2: fort: "king of fort". Possible prepositions are: "of", "on", "in", "for", "from", "about", and "with".
question:
Word1: concerto 
 Word2: violin
answer:
for


question:
Word1: underwriter 
 Word2: exchange
answer:
of


question:
Word1: trial 
 Word2: impeachment
answer:

for