J4 College Park-Bethesda Metro Extra line
Table:
J4 College Park–Bethesda MetroExtra line
System	Metrobus
Operator	Washington Metropolitan Area Transit Authority
Garage	Montgomery
Livery	MetroExtra
Status	In Service
Began service	April 15, 2002
Locale	Prince George's County, Montgomery County
Communities served	College Park, Maryland, University Of Maryland, Langley Park, Maryland, Takoma Park, Maryland, Silver Spring, Maryland, Rock Creek Forest, Chevy Chase, Maryland, Bethesda, Maryland
Landmarks served	College Park–University of Maryland station, University Of Maryland, Langley Park, Maryland, Takoma Park, Maryland, Takoma Langley Crossroads Transit Center, Silver Spring station, Rock Creek Forest, Chevy Chase, Maryland, Bethesda station
Start	College Park–University of Maryland station
Via	River Road, Paint Branch Parkway, Campus Drive, University Boulevard, New Hampshire Avenue, Piney Branch Road, Flower Avenue, Wayne Avenue, Colesville Road, East-West Highway
End	Bethesda station
Level	Weekday Peak Hour Service Only
Frequency	20 minutes
Operates	5:20 AM – 9:30 AM, 3:25 PM – 7:45 PM
Transfers	SmarTrip only

Using the given table, state whether the hypothesis is entailed, neutral, or refuted. Conclude with JSON {"answer": "YOUR ANSWER"} — nothing else.

Assertion: The J4 College Park–Bethesda MetroExtra line runs every 20 minutes.

answer: entailed