Original sentence: During 1980, Penderecki was commissioned by Solidarity to compose a piece to accompany the unveiling of a statue at the Gdańsk shipyards to commemorate those killed at anti-government riots there in 1970
Edited sentence: During 1980, Penderecki was commissioned by Solidarity to compose a piece to accompany the unveiling of a statue at the Gdańsk shipyards to commemorate those killed in anti-government riots there in 1970