With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Ricin is harmless .
text_B: Ricin -LRB- -LSB- ˈraɪsɪn -RSB- -RRB- is a highly toxic , naturally occurring lectin -LRB- a carbohydrate-binding protein -RRB- produced in the seeds of the castor oil plant , Ricinus communis .
REFUTES.