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".

Example Input: Word1: mystery 
 Word2: doors
Example Output: of

Example Input: Word1: plant 
 Word2: power
Example Output: for

Example Input: Word1: machinery 
 Word2: dark
Example Output:
in