Original sentence: Under his will, he created the Académie Goncourt which has awarded since 1903 the Prix Goncourt, a prize in French language literature, given to the author of "the best imaginary prose work of the year"
Edited sentence: Under his will, he created the Académie Goncourt which has awarded since 1903 the Prix Goncourt, the most prestigious prize in French language literature, given to the author of "the best imaginary prose work of the year"