In this task, you're given an open-domain question. Your task is to provide an answer to the given question. There is only one unique answer for each question. Your answer should be short, and refer to an entity, date, number, etc. Do not put your answer in the context of a sentence.

Type of epithelial tissue containing cells that can change shapes as the tissue stretches?
a type of stratified epithelium

Who was the first president who lived in the white house?
John Adams

When was it discovered that fingerprints were unique?

1788