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".

Ex Input:
Word1: concession 
 Word2: wage

Ex Output:
in


Ex Input:
Word1: unit 
 Word2: thrift

Ex Output:
for


Ex Input:
Word1: potential 
 Word2: downside

Ex Output:

for