You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: MIDDLE INITIAL V. 
Clue: This current world leader's middle initial V. stands for Vladimirovich
vladimir putin

Category: WHAT'S COOKIN'? 
Clue: You can find this celebrity chef's pizzas at his Spago Restaurant, or frozen at the grocery store
wolfgang puck

Category: ROCK COLLECTING 
Clue: The crack, chisel & sledge types of these tools are useful in the field

hammers