With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Several main cast members dropped to recurring guest stars as of this season of the TV series Glee such as Harry Shum Jr. as Mike .
text_B: Several main cast members dropped to recurring guest stars as of this season : Amber Riley as Mercedes , Mark Salling as Puck , and Heather Morris as Brittany .
NOT ENOUGH INFO.