With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Walt had poisoned Brock in order to spur Jesse into action
text_B: The final scene of the fourth season shows a potted Lily of the Valley in Walt 's backyard , revealing that Walt had poisoned Brock in order to regain Jesse 's loyalty and spur him into action as part of Walt 's plan to kill Gus.
REFUTES.