Question: At what venue is the margin of victory 7 strokes?
SQL: SELECT "Venue" FROM "2-1520559-2" WHERE "Margin of victory" = '7 strokes';

Question: What was the purse when sherri steinhauer was champion at woburn golf and country club?
SQL: SELECT COUNT("Purse ( $ )") FROM "2-1520559-2" WHERE "Champion" = 'sherri steinhauer' AND "Venue" = 'woburn golf and country club';