Assertion: polka | /r/HasProperty | a kind of folk music
Facets:
value: in various european countries
type: LOCATION
value: like austria
type: OTHER
value: like the czech republic
type: LOCATION
value: like switzerland
type: OTHER
Source sentences:
text: In various European countries, like the Czech Republic, Switzerland, and Austria, polka is a kind of folk music, which is usually presented by traditional artists.