With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Mayo Clinic developed a test to detect COVID-19 before March 13 , 2020 .
text_B: On March 13 , 2020 , Roche Diagnostics received FDA approval for a test which could be performed within 3.5 hours , thus allowing one machine to do approximately 4,128 tests in a 24-hour period.
NOT ENOUGH INFO.