Premise: John Towner Williams ( born February 8 , 1932 ) is an American composer , conductor , and pianist . Williams has composed numerous classical concerti and other works for orchestral ensembles and solo instruments ; he served as the Boston Pops ' principal conductor from 1980 to 1993 , and is now the orchestra 's laureate conductor .
Hypothesis: John Williams is not an orchestral conductor.
Label: CONTRADICTION