user: ### NOW ANSWER:
Question: Which Women's 35 has a Men's 50 of N/A, and a Men's 40 of Southern Suns def SunWest Razorbacks?
Columns: ['Year', "Men's Open", "Women's Open", 'Mixed Open', "Men's u20", "Women's u20", 'Senior Mixed', "Men's 30", "Women's 30", "Men's 35", "Women's 35", "Men's 40", "Women's 40", "Men's 45", "Men's 50"]
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1997.0, 'Sydney Scorpions def Brisbane City Cobras', 'Brisbane City Cobras def Sydney Mets', 'Sydney Rebels def Brisbane City Cobras', 'Brisbane City Cobras def Gold Coast Sharks', 'Sunwest Razorbacks def Sydney Rebels', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A', 'N/A']
SQL:

assistant: SELECT "Women's 35" FROM "Table" WHERE "Men's 50" = 'N/A' AND "Men's 40" = 'Southern Suns def SunWest Razorbacks';