user: Question: How many values are in the PF cell when Jennifer Jones is skip?
Columns: ['Province', 'Skip', 'W', 'L', 'PF', 'PA', 'Ends Won', 'Ends Lost', 'Blank Ends', 'Stolen Ends', 'Shot Pct.']
Types: ['text', 'text', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Alberta', 'Cheryl Bernard', 6.0, 1.0, 56.0, 41.0, 32.0, 29.0, 6.0, 6.0, 80.0]
SQL:

assistant: SELECT COUNT("PF") FROM "Table" WHERE "Skip" = 'Jennifer Jones';