Complex sentence: Maori or Māori is the Polynesian language of the indigenous Maori (Māori) ethnic group of New Zealand, and since 1987 has been one of New Zealand's official languages.
Split into simpler sentences: Maori or Māori is the Polynesian language of the indigenous Maori (Māori) ethnic group of New Zealand. Since 1987, it has been one of New Zealand's official languages.