instruction: what is the number of times that patient 1249 had had a pe 20 fs po intake in 03/2102?
response: SELECT COUNT(*) 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 = 1249)) AND inputevents_cv.itemid IN (SELECT d_items.itemid FROM d_items WHERE d_items.label = 'pe 20 fs po' AND d_items.linksto = 'inputevents_cv') AND STRFTIME('%y-%m', inputevents_cv.charttime) = '2102-03'