tell me the amount of deliver 2.0 that patient 27703 has received on last month/05.
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 = 27703 ) ) and inputevents_cv.itemid in ( select d_items.itemid from d_items where d_items.label = 'deliver 2.0' and d_items.linksto = 'inputevents_cv' ) and datetime(inputevents_cv.charttime,'start of month') = datetime(current_time,'start of month','-1 month') and strftime('%d',inputevents_cv.charttime) = '05'