TASK DEFINITION: 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.
PROBLEM: Who arranged the periodic table by increasing atomic number?

SOLUTION: Henry Moseley

PROBLEM: Where did jaren jackson senior play college basketball?

SOLUTION: Georgetown University

PROBLEM: Who plays nurse gilbert in call the midwife?

SOLUTION:
Charlotte Ritchie