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: block 
 Word2: granite

Ex Output:
of


Ex Input:
Word1: starlight 
 Word2: sky

Ex Output:
of


Ex Input:
Word1: security 
 Word2: family

Ex Output:

of