who are the dada professors?
['Albus Dumbledore (at least 1910s-1927)', 'Galatea Merrythought. (?-1945)', 'Patricia Rakepick (1988-1989)', 'Quirinus Quirrell (1991-1992)', 'Gilderoy Lockhart (1992-1993)', 'Remus Lupin (1993-1994)', 'Bartemius Crouch Jr (1994-1995)', 'Dolores Umbridge (1995-1996)']