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: certainty 
 Word2: seeing

Ex Output:
in


Ex Input:
Word1: rate 
 Word2: unemployment

Ex Output:
of


Ex Input:
Word1: medicine 
 Word2: heart

Ex Output:

for