With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Khal Drogo was introduced in a novel.
text_B: Moi Teaching and Referral Hospital is the second National Referral Hospital in Kenya .. The Hospital is located along Nandi Road in Eldoret town , Uasin Gishu .. The hospital was involved in a controversy in September 2015 when two children died and seven others had to be treated for serious conditions after receiving measles vaccinations in Kerio Valley , Elgeyo-Marakwet County .. measles vaccinations. measles vaccinations
not_related.