With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Ruth Negga is a person.
text_B: Trident is a brand of sugar-free chewing gum .. chewing gum. chewing gum. It was introduced by Cadbury in the United Kingdom .. Cadbury. Cadbury. United Kingdom. United Kingdom. In many other European countries , Trident is branded as Stimorol gum ; it is generally the same as Trident .. Stimorol. Stimorol
not_related.