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: part 
 Word2: picture

Output: in


Input: Consider Input: Word1: system 
 Word2: diagnostics

Output: for


Input: Consider Input: Word1: union 
 Word2: customs


Output: about