Complex sentence: Although the National Historical Commission of the Philippines (NHCP) has not yet intervened, several online petitions are being posted by some concerned citizens and non-governmental groups, calling the attention of the President, to save the mansion.
Split into simpler sentences: Although the National Historical Commission of the Philippines (NHCP) has not yet intervened. Several online petitions are being posted by some concerned citizens and non-governmental groups, calling the attention of the President, to save the mansion.