With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Lucas starred a Canadian actor.
text_B: Seed 97.5 FM is a radio station owned and operated by MCOT and based in Bangkok , Thailand .. MCOT. MCOT. Bangkok. Bangkok. Thailand. Thailand. It broadcasts over the 97.5 MHz FM frequency in the Greater Bangkok area , and is repeated nationwide through MCOT Radio 's regional network .. MCOT. MCOT. Bangkok. Bangkok. Seed 97.5 FM ceased broadcasting on 1 January 2017 .. It was replaced by 97.5 Keep It Mellow .
not_related.