Complex sentence: It is scored for two oboes, two bassoons, horns, timpani, continuo (harpsichord) and Two Violins, Viola, Cello and Double Bass although no independent part for the double bass exists, it would have followed the cello part in octaves.
Split into simpler sentences: It is scored for two oboess, two bassoons, horns, timpani, continuo (harpsichord) and a string section containing first and second violins, violas, cellos and double basses. Although no independent part for the double bass exists, it would have followed the cello part in octaves.