Original sentence: He also writes regularly for The Guardian's Comment is Free website.He hosted a weekly programme, "Talking with Tatchell", on the Internet television station 18 Doughty Street, until that station ceased broadcasting in November 2007.In early 2007, however, a group of twenty African lesbian, gay, bisexual, and transgender activists wrote an open letter to Tatchell, calling on him to  "Stay out of African LGBTI issues
Edited sentence: However, some of those Tatchell claims to help question both his efficacy and his motives.In early 2007, for example, a group of twenty African lesbian, gay, bisexual, and transgender activists wrote an open letter to Tatchell, calling on him to  "Stay out of African LGBTI issues