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".

Input: Consider Input: Word1: systems 
 Word2: treatment

Output: for


Input: Consider Input: Word1: houses 
 Word2: village

Output: in


Input: Consider Input: Word1: rate 
 Word2: coupon


Output: of