With no explanation, label text_A→text_B with either "NOT ENOUGH INFO", "REFUTES" or "SUPPORTS".
text_A: Porsche 959 comes with an air-cooled block and water-cooled heads .
text_B: The powerplant , a twin-turbocharged six-cylinder boxer engine with air-cooled cylinders and water-cooled heads , displaced 2.85ï¿½liters , about half a liter less than a contemporary 911 engine .
REFUTES.