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: iron 
 Word2: wife

Output: in


Input: Consider Input: Word1: photograph 
 Word2: wife

Output: of


Input: Consider Input: Word1: granules 
 Word2: pigment


Output: of