Table: g8_leadership
Columns: entered_office_as_head_of_state_or_government
began_time_as_senior_g8_leader
ended_time_as_senior_g8_leader
person
office

Question: When did Jacques Chirac stop being a G8 leader?
SQL: SELECT "ended_time_as_senior_g8_leader" FROM g8_leadership WHERE "person" = 'Jacques Chirac'

Question: When did the Prime Minister of Italy take office?
SQL: SELECT "entered_office_as_head_of_state_or_government" FROM g8_leadership WHERE "office" = 'Prime Minister of Italy'