Assertion: harmonica's triad | /r/HasProperty | d-f-a
Facets:
Source sentences:
text: A B triad (B-D-F) in Holes 3, 4, and 5 and in Holes 7, 8, and 9 A D triad (D-F-A) in Holes 4, 5, and 6 and in Holes 8, 9, and 10