With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Shawn Mendes is an actor.
text_B: Lara Honos-Webb , Ph.D. , is the author of several books on attention deficit hyperactivity disorder .. attention deficit hyperactivity disorder. attention deficit hyperactivity disorder. She is a practicing clinical psychologist , licensed in California .. She is well known for her distinctive reframing of mental illnesses that are commonly conceived as detrimental , into gifts that offer exceptional strengths .. She is unique in her use of radical self-acceptance in her treatment .
not_related.