instruction: when was the first time that patient 006-143187 had the urine output on the first intensive care unit visit?
response: SELECT intakeoutput.intakeoutputtime FROM intakeoutput WHERE intakeoutput.patientunitstayid IN (SELECT patient.patientunitstayid FROM patient WHERE patient.patienthealthsystemstayid IN (SELECT patient.patienthealthsystemstayid FROM patient WHERE patient.uniquepid = '006-143187') AND NOT patient.unitdischargetime IS NULL ORDER BY patient.unitadmittime LIMIT 1) AND intakeoutput.cellpath LIKE '%output%' AND intakeoutput.celllabel = 'urine' ORDER BY intakeoutput.intakeoutputtime LIMIT 1