user: Question: What is the sum of the pick numbers for the player that went to San Miguel Beermen who played at San Sebastian?
Columns: ['Pick', 'Player', 'Country of origin*', 'PBA team', 'College']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [18.0, 'Christopher Abellana', 'Philippines', 'Sta. Lucia Realtors', 'Visayas']
SQL:

assistant: SELECT SUM("Pick") FROM "Table" WHERE "PBA team" = 'San Miguel Beermen' AND "College" = 'San Sebastian';