this year what is the first careunit of patient 97314?
select transfers.careunit from transfers where transfers.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 97314 ) and transfers.careunit is not null and datetime(transfers.intime,'start of year') = datetime(current_time,'start of year','-0 year') order by transfers.intime asc limit 1