instruction: what was the organism that was found in the last microbiology test of patient 031-23605's urine, catheter specimen in 08/last year?
response: SELECT microlab.organism FROM microlab WHERE microlab.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '031-23605')) AND microlab.culturesite = 'urine, catheter specimen' AND DATETIME(microlab.culturetakentime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-1 year') AND STRFTIME('%m', microlab.culturetakentime) = '08' ORDER BY microlab.culturetakentime DESC LIMIT 1