Complex sentence: An annual "Exhibition of the Work of Negro Artists", conceived by Mary Brady, was held in 1927 through 1931,1933, and 1935, and featured "substantial prizes" together with gold, silver and bronze medals.
Split into simpler sentences: An annual "Exhibition of the Work of Negro Artists", conceived by Mary Brady, was held in 1927 through 1931,1933, and 1935. The traveling exhibitions awarded "substantial prizes" together with gold, silver and bronze medals.