what intake did patient 13848 take until 02/18/2104 for the last time?
select d_items.label from d_items where d_items.itemid in ( select inputevents_cv.itemid 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 = 13848 ) ) and strftime('%y-%m-%d',inputevents_cv.charttime) <= '2104-02-18' order by inputevents_cv.charttime desc limit 1 )