user: Question: What is the sum for the pick of the year 2009, and a round smaller than 2 and an NBA Club Denver Nuggets?
Columns: ['Year', 'Round', 'Pick', 'Player', 'NBA Club']
Types: ['real', 'real', 'real', 'text', 'text']
Sample row: [2009.0, 1.0, 13.0, 'Tyler Hansbrough', 'Indiana Pacers']
SQL:

assistant: SELECT SUM("Pick") FROM "Table" WHERE "Year" = 2009.0 AND "Round" < 2.0 AND "NBA Club" = 'Denver Nuggets';