user: Question: Tell me the total number of picks for position of m of williams college
Columns: ['Pick #', 'MLS Team', 'Player', 'Position', 'Affiliation']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [21.0, 'MetroStars', 'Zach Wells', 'GK', 'UCLA']
SQL:

assistant: SELECT COUNT("Pick #") FROM "Table" WHERE "Position" = 'm' AND "Affiliation" = 'williams college';