Nissan BD Engine
Table:
Nissan BD Engine
Manufacturer	Nissan Diesel
Configuration	Naturally aspirated Straight-4
Displacement	2.5–3.0 L (2,493–2,953 cc)
Fuel system	Direct injection
Fuel type	Diesel
Cooling system	Water-cooled
Power output	82–100 PS (60–74 kW; 81–99 bhp)
Torque output	22 kg⋅m (220 N⋅m; 160 lb⋅ft)

From the table, identify if the claim is entailed, neutral, or refuted. Output only the JSON object {"answer": "YOUR ANSWER"}.

Assertion: The cooling system used for the Nissan BD engine is

answer: neutral