You will be given a trivia clue, and the category it belongs to. You should answer with the best answer that belongs in the category and is described by the clue. For simplicity, answers should be in all lower cased letters.

Category: ARTISTS 
Clue: As of Oct. 1999, of the 10 most expensive paintings sold at public auction, these 2 artists had 4 each on the list
pablo picasso & vincent van gogh

Category: 19th CENTURY SCIENCE 
Clue: In 1824 Anglican priest William Buckland wrote a pioneering paper on Megalosaurus, a creature whose name means this
lizard

Category: WORDS IN POETRY 
Clue: The 2 "oo" 4-letter words in the poem inscribed in the base of the Statue of Liberty

poor & door