question: What is the Type with a Location with justus lipsius building, brussels, and a Year of 2012, and a President with herman van rompuy (1st term), and a Date with 23 may?
answer: SELECT type FROM table_name_59 WHERE location = "justus lipsius building, brussels" AND year = 2012 AND president = "herman van rompuy (1st term)" AND date = "23 may"
context: CREATE TABLE table_name_59 (type VARCHAR, date VARCHAR, president VARCHAR, location VARCHAR, year VARCHAR)