With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Overwatch is an online single-player video game .
text_B: A portion of the Titan team came up with the concept of Overwatch , based on the success of team-based first-person shooters like Team Fortress 2 and the growing popularity of multiplayer online battle arenas , creating a hero-based shooter that emphasized teamwork .
REFUTES.