With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: Jessica Chastain was in the 1988 revival of The Heiress.
text_B: Lincoln Hall is a historical building located in Portland , Oregon , that is the home of the theatre , film , and performing arts departments at Portland State University .. Portland State University. Portland State University. theatre. theatre. performing arts. performing arts. It was originally home to Lincoln High School before becoming a part of the Portland State College in 1955 .. Lincoln High School. Lincoln High School ( Portland, Oregon )
not_related.