(1) Yo-Yo Ma who was born in Paris is a Chinese American cellist. (2) He was a prodigy and started performing violin and piano pieces at the age of four. (3) He attended two of the best schools in the USA: Julliard and Harvard. (4) The cello he plays was built in 1733. (5) He calls his cello "Petunia. " (6) He is an amazing soloist, and has recorded over 90 albums. Which sentence contains an error in the use of a nonrestrictive clause? Which revision would correct this error?.