With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: London has the world's largest cluster of internationally significant aromatherapy services.
text_B: `` Keep Tryin ' '' is a song recorded by Japanese recording artist Utada Hikaru for her sixth studio and fourth Japanese album , Ultra Blue -LRB- 2006 -RRB- .. Utada Hikaru. Utada Hikaru. Ultra Blue. Ultra Blue. It premiered on February 22 , 2006 as the fifth single from the album in Japan .. It was written and composed by Utada , whilst production was handled by Utada , her father Teruzane Utada , and Miyake Akira .. Teruzane Utada. Teruzane Utada. It included the B-side track `` Wings '' , which also appeared on the parent album .. Musically , `` Keep Tryin ' '' is a pop song .. pop. pop music. Lyrically , it discusses themes of self-empowerment .. Upon its release , the track garnered generally mixed reviews from music critics .. Many critics complimented the song 's catchy melody and believed the chorus memorable .. However , some critics felt its overall production and composition was `` light weighted '' and one of her weaker singles .. The single achieved success in Japan , peaking at number two on the Oricon Singles Chart .. Oricon Singles Chart. Oricon Singles Chart. The single has been certified within four different categories by the Recording Industry Association of Japan -LRB- RIAJ -RRB- .. Recording Industry Association of Japan. Recording Industry Association of Japan. It was also the best selling digital single in Japan of 2006 .. An accompanying music video was shot by Utada 's ex-husband Kazuaki Kiriya , and currently is his final collaboration with her ; it features Utada in several different costumes , channelling several different roles in a cartoon-influenced city .. Kazuaki Kiriya. Kazuaki Kiriya. The song had been promoted through several Japanese commercials and television shows .
not_related.