Please choose the correct solution to the question: How to hollow an egg.

Solution1: Using a large needle, pierce both ends of the shell. Wiggle the needle around in a circular motion to open the hole at one end. Repeat at the other end, then blow out the yolk and white.

Solution2: Using a large rolling pin, pierce both ends of the shell. Wiggle the rolling pin around in a circular motion to open the hole at one end. Repeat at the other end, then blow out the yolk and white.

Answer format: solution1/solution2
Answer: solution1