With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Thiokol was concerned with materials .
text_B: When scientists at the `` Jet Propulsion Laboratory '' discovered that `` Thiokol polymers '' made ideal binders for solid rocket fuels , it was a breakthrough in the new field , further investigated in laboratories at Elkton , Maryland , and later produced in facilities at Elkton and at Redstone Arsenal in Huntsville , Alabama .
REFUTES.