In which condition(s) is bleeding time prolonged and prothrombin time unaffected?
CREATE TABLE "laboratory_findings_in_various_platelet_" (
  "condition" text,
  "prothrombin_time" text,
  "partial_thromboplastin_time" text,
  "bleeding_time" text,
  "platelet_count" text
);
SELECT "condition" FROM "laboratory_findings_in_various_platelet_" WHERE "bleeding_time"='Prolonged' AND "prothrombin_time"='Unaffected';