List the full names, gender and positions who's location is in New York city.
full name = firstname, lastname; New York city refers to locationcity = 'New York City'
SELECT T1.firstname, T1.lastname, T1.gender, T3.positiontitle FROM employee AS T1  INNER JOIN location AS T2  ON T1.locationID = T2.locationID INNER JOIN position AS T3  ON T3.positionID = T1.positionID WHERE T2.locationcity = 'New York City'