Assertion details
Summary
african elephant be used 1 for piano keys
1 triples in cluster
african elephant be used for piano keys 1
1 source sentences
Source: Shown
Subject: Shown
Predicate: Shown
Object: Shown
Facet: Shown
  • SRC Because their tusks are made of ivory , they have been used for numerous reasons such as billiard balls , dice , piano keys , and most commonly , decorative carvings .