With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Backstreet Boys are a group of vocalists who perform together.
text_B: The great-billed parrot -LRB- Tanygnathus megalorynchos -RRB- also known as Moluccan parrot or island parrot , is a medium-sized , approximately 38 cm long , green parrot with a massive red bill , cream iris , blackish shoulders , olive green back , pale blue rump and yellowish green underparts .. Tanygnathus. Tanygnathus. parrot. parrot. bill. Beak. cream. Cream ( colour ). iris. Iris ( anatomy ). The female is typically smaller than the male , but otherwise the sexes are similar .. The great-billed parrot is found in forest , woodland and mangrove in the south-east Asian islands of Maluku , Raja Ampat , Talaud , Sangir , Sarangani , the Lesser Sundas , and nearby small islands .. parrot. parrot. Maluku. Maluku Islands. Raja Ampat. Raja Ampat Islands. Talaud. Talaud Islands. Sangir. Sangir Islands. Sarangani. Sarangani Island. Lesser Sundas. Lesser Sundas. The diet consists mainly of fruits .. It remains widespread and locally fairly common , and consequently has been rated as least concern on the IUCN Red List of Threatened Species .. least concern. least concern. IUCN Red List. IUCN Red List
not_related.