In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

who sings leaving on a jet plane lyrics
Peter, Paul and Mary

who plays sister bernadette on call the midwife
Laura Main

what is the name for ancient egyptian writing

hieroglyphs