sentence1: Although it is strictly a part of the Spanish archipelago known as the Islas Pitiusas, or pine-covered isles, Ibiza in fact displays many of the characteristics of the Islas Baleares, or Balearic Islands, of neighbouring Mallorca and Menorca, with which it is commonly grouped.
sentence2: Mallorca and Menorca belong to the Islas Pitiusas.