Simplify the following text for a Grade 8 native English-speaking person.
Original: In 1999 , the National Gay and Lesbian Task Force became the first LGBT civil rights organization to stop work on ENDA because of its lack of transgender-inclusion .
Simplified: In 1999 , the [ngltf.org National Gay and Lesbian Task Force ) was the first gay civil rights group to stop work on ENDA because it did not include transgender people .