Assertion: carol's work | /r/HasProperty | sung by groups of wassailers
Facets:
value: probably
type: DEGREE
Source sentences:
text: Christmas carols in English first appear in a 1426 work of John Awdlay, a Shropshire chaplain, who lists twenty five "caroles of Cristemas", probably sung by groups of 'wassailers', who went from house to house.