user: Question: How is the bleeding time wherein platelet count is Decreased and prothrombin time is Unaffected?
Columns: ['Condition', 'Prothrombin time', 'Partial thromboplastin time', 'Bleeding time', 'Platelet count']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Vitamin K deficiency or warfarin', 'Prolonged', 'Normal or mildly prolonged', 'Unaffected', 'Unaffected']
SQL:

assistant: SELECT "Bleeding time" FROM "Table" WHERE "Platelet count" = 'Decreased' AND "Prothrombin time" = 'Unaffected';