user: Question: How many numbers in the season were written by  Brett Conrad & Liz Sagal?
Columns: ['No. in series', 'No. in season', 'Title', 'Directedby', 'Writtenby', 'Originalairdate', 'Production code', 'U.S.viewers (million)']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [14.0, 1.0, '"Albification"', 'Guy Ferland', 'Kurt Sutter', 'September8,2009', '2WAB01', '4.29']
SQL:

assistant: SELECT COUNT("No. in season") FROM "Table" WHERE "Writtenby" = 'Brett Conrad & Liz Sagal';