instruction: what was the last time patient 032-25571 had been tested for lab tests in 09/2105?
response: SELECT lab.labresulttime FROM lab WHERE lab.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '032-25571')) AND STRFTIME('%y-%m', lab.labresulttime) = '2105-09' ORDER BY lab.labresulttime DESC LIMIT 1