With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Princess Agents was based on a novel.
text_B: Unstoppable is DeLon 's second album .. DeLon. DeLon ( rapper ). DeLon has embarked on a 60-school tour through middle schools , high schools and colleges in his `` Unity Through Education Tour '' throughout Los Angeles .. DeLon. DeLon ( rapper ). Unity Through Education Tour. Unity Through Education Tour. According to DeLon  :. DeLon. DeLon ( rapper ). `` My musical purpose is to bring unity amongst people and to educate them through my lyrics . ''. `` Rap music is such a powerful tool and if used to educate , can help change the world . ''
not_related.