sentences:  Numerous other groups were established, including Portugal Pride, AMPLOS ("Associação de Mães e Pais pela Liberdade de Orientação Sexual") and Pink Panthers ("Panteras Rosa"), along with a motorcycle group for LGBT people in Porto and an LGBT Catholic association in Lisbon.Owing to their advocacy and work, anti-discrimination laws were expanded to include sexual orientation and gender identity, article 13 of the Constitution of Portugal was similarly amended to prohibit discrimination based on sexual orientation, transgender transition laws were relaxed and civil unions were opened to same-sex couples.In 2010, Portugal legalised same-sex marriage, the eighth country worldwide to do so and the sixth in Europe, and in 2016 same-sex couples became eligible to legally adopt.