Assertion: macintosh | /r/HasProperty | well-versed
Facets:
value: in bluegrass guitar
type: OTHER
value: by his late teens
type: TEMPORAL
value: in country
type: LOCATION
Source sentences:
text: By his late teens, Mack was well-versed in country and bluegrass guitar, blues guitar, rockabilly guitar, and the percussive chordal