count how many times patient 69895 has had a urine out foley out on 02/10/2105.
select count(*) from outputevents where outputevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 69895 ) ) and outputevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'urine out foley' and d_items.linksto = 'outputevents' ) and strftime('%y-%m-%d',outputevents.charttime) = '2105-02-10'