TIERRA AMARILLA, N.M. (AP) — Activists and towns are left wondering what to do with empty spaces that once honored historic figures tied to racism as statues and monuments fall. They also are debating how to remember civil rights figures in areas where they have been forgotten. Some advocates say figures like Underground Railroad conductor Harriet Tubman or Mexican American civil rights leader Dolores Huerta should replace the fallen statues. Others say Isleta Pueblo and World War II Marine Sgt. Miguel Trujillo Sr., who sued to get Native Americans the right to vote in New Mexico, or former slave-turned-abolitionist Olaudah Equiano should have monuments erected in their honor.