16G, 16H Columbia Pike-Pentagon City line
Table:
16G, 16H Columbia Pike–Pentagon City line
System	Metrobus
Operator	Washington Metropolitan Area Transit Authority
Garage	Four Mile Run
Livery	Local
Status	In Service
Began service	September 7, 2003
Ended service	16K: June 24, 2018
Locale	Fairfax County
Arlington County
Communities served	Skyline City, Columbia Forest, Arlington Mill, Barcroft, Arlington Heights, Penrose, Pentagon City
Landmarks served	United States Air Force Memorial, Pentagon City station
Start	Arlington Mill (16G)
Skyline City (16H)
Via	Columbia Pike
End	Pentagon City station
Level	Daily
Frequency	10-15 minutes (Rush Hour)
20-25 minutes (Midday and Weekday Evening Service)
30 minutes (Weekends)
Operates	4:52 AM – 11:24 PM (Weekdays)
5:35 AM – 11:22 PM (Weekends)
Transfers	SmarTrip only
Timetable	Columbia Pike–Pentagon City Line

From the table, judge whether the statement is entailed, neutral, or refuted according to the table. Conclude with JSON {"answer": "YOUR ANSWER"} — nothing else.

Assertion: The 16G, 16H Columbia Pike–Pentagon City line began service in 2003.

answer: entailed