what diagnosis did patient 57050 receive since 2105 for the last time?
select d_icd_diagnoses.short_title from d_icd_diagnoses where d_icd_diagnoses.icd9_code in ( select diagnoses_icd.icd9_code from diagnoses_icd where diagnoses_icd.hadm_id in ( select admissions.hadm_id from admissions where admissions.subject_id = 57050 ) and strftime('%y',diagnoses_icd.charttime) >= '2105' order by diagnoses_icd.charttime desc limit 1 )