what is the total number of input patient 16088 has received since 05/13/2104?
select sum(inputevents_cv.amount) from inputevents_cv where inputevents_cv.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 16088 ) ) and strftime('%y-%m-%d',inputevents_cv.charttime) >= '2104-05-13'