Complex sentence: The Center is part of the Catalan Federation of NGOs for Peace, Human Rights, and Development and it participates as part of the Catalan Social Forum, the Catalan Forum of Theology and Liberation, and the Christian Platform for immigrants.
Split into simpler sentences: The Center is part of the Catalan Federation of NGOs for Peace, Human Rights, and Development. It participates in the Catalan Social Forum, the Catalan Forum of Theology and Liberation and the Christian Platform for immigrants.