Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

Input: Consider Input: Like mitochondria, plastids contain their own dna.

Output: Like mitochondria, plastids contain their own what?


Input: Consider Input: A crater can usually be found on the top of composite volcanoes.

Output: A crater can usually be found on the top of what kind of volcanoes?


Input: Consider Input: A 50 ml graduated cylinder of the following tools would give the most precise measurement of 15 milliliters of water.


Output: Which of the following tools would give the most precise measurement of 15 milliliters of water?