Question:  John O'Sullivan is currently the editor of what Australian monthly magazine that reviews literature as well as features essays on ideas such as politics, history, universities and the arts?
Sentence (from "John O'Sullivan (columnist)"): During the 1980s, he was a senior policywriter and speechwriter in 10 Downing Street for Margaret Thatcher when she was British prime minister and remained close to her up to her death.
Relevant evidence: No