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.

Who arranged the periodic table by increasing atomic number?
Henry Moseley

Who played jennifer hart in hart to hart?
Stefania Zofya Federkiewicz

Who plays emma's son in life unexpected?

Landon Liboiron