Assertion: tenor trombone | /r/AtLocation | use
Facets:
value: primarily
type: DEGREE
value: since world war ii
type: TEMPORAL
value: in orchestras
type: LOCATION
Source sentences:
text: Since World War II the contrabass trombone in F with two valve attachments has been primarily in use in orchestras, though the 18′ B♭ version is still used by many.