when was the last time the arterial bp [systolic] of patient 10278 was less than 129.0, until 10/20/2105?
select chartevents.charttime from chartevents where chartevents.icustay_id in ( select icustays.icustay_id from icustays where icustays.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 10278 ) ) and chartevents.itemid in ( select d_items.itemid from d_items where d_items.label = 'arterial bp [systolic]' and d_items.linksto = 'chartevents' ) and chartevents.valuenum < 129.0 and strftime('%y-%m-%d',chartevents.charttime) <= '2105-10-20' order by chartevents.charttime desc limit 1