Please choose the correct solution to the question: How to separate egg yolks from egg whites?

Solution1: Crack the egg and using an empty water bottle, place the opening over the egg yolk and pump the bottle so it sucks up the egg yolk

Solution2: Crack the egg and using an full water bottle, place the opening over the egg yolk and pump the bottle so it sucks up the egg yolk

Answer format: solution1/solution2
Answer: solution1