Aerotrain
Table:
Aerotrain
Type	People mover
Status	Operational
Locale	Kuala Lumpur International Airport, Malaysia
Stations	2
Services	1
Opened	1998
Owner	Malaysia Airports Holdings Berhad
Operator(s)	Engineering Transportation, Malaysia Airport (Sepang) Sdn. Bhd.
Character	Serves sterile parts of the airport
Rolling stock	3-car 2 trainsets of Bombardier Innovia APM 100
Track length	1.2 km (0.75 mi)
Operating speed	Maximum speed 56.3 km/h (35 mph), Minimum speed 46.7 km/h (29 mph)
Highest elevation	Partially underground

Using the given table, determine whether the statement is entailed, neutral, or refuted. Output only the JSON object {"answer": "YOUR ANSWER"}.

Claim: Aerotrain opened over 20 years ago.

answer: entailed