Assertion: country skier | /r/CapableOf | train with a mix of roller skiing
Facets:
value: long hours
type: TEMPORAL
Source sentences:
text: 8:30 a.m.: To build endurance when there's no snow outside, cross-country skiers train long hours with a mix of roller skiing (similar to roller blading but without breaks, and with poles), running, biking, and weight lifting.