With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Players are given a chance to kill the Vortigaunt in the game Half-Life 2 : Episode Two .
text_B: Despite this , the Vortigaunt that accompanies the player forbids him from harming it , as the extract will be ruined if he does , so the player must accomplish his goal while being harried by a creature he can not eliminate .
NOT ENOUGH INFO.