instruction: what was patient 012-63427's first id of the ward until 1 year ago?
response: SELECT patient.wardid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '012-63427') AND DATETIME(patient.unitadmittime) <= DATETIME(CURRENT_TIME(), '-1 year') ORDER BY patient.unitadmittime LIMIT 1