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: trading 
 Word2: dollar

Output: in


Input: Consider Input: Word1: rate 
 Word2: sales

Output: of


Input: Consider Input: Word1: niche 
 Word2: market


Output: in