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: problems 
 Word2: frontier

Output: on


Input: Consider Input: Word1: deficit 
 Word2: budget

Output: in


Input: Consider Input: Word1: market 
 Word2: steel


Output: for