what is the name of the organism found in the first swab microbiology test of patient 31325 in 06/last year?
select microbiologyevents.org_name from microbiologyevents where microbiologyevents.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 31325 ) and microbiologyevents.spec_type_desc = 'swab' and microbiologyevents.org_name is not null and datetime(microbiologyevents.charttime,'start of year') = datetime(current_time,'start of year','-1 year') and strftime('%m',microbiologyevents.charttime) = '06' order by microbiologyevents.charttime asc limit 1