instruction: when had patient 035-20156 come to the hospital for the first time the previous year via direct admit?
response: SELECT patient.hospitaladmittime FROM patient WHERE patient.uniquepid = '035-20156' AND patient.hospitaladmitsource = 'direct admit' AND DATETIME(patient.hospitaladmittime, 'start of year') = DATETIME(CURRENT_TIME(), 'start of year', '-1 year') ORDER BY patient.hospitaladmittime LIMIT 1