Assertion: piano's string | /r/HasProperty | hit by small blade of metal
Facets:
Source sentences:
text: It developed from the clavichord which looks like a piano but the strings of a clavichord are hit by a small blade of metal called a “tangent”.
text: It developed from the clavichord which looks like a piano but the strings of a clavichord are hit by a small blade of metal called a “tangent”.