Complex sentence: Porto Alegre spent about 200 million dollars per year on construction and services, This money is subject to participatory budgeting, unlike the annual spending on fixed expenses such as debt service and pensions, which is not subject to public participation.
Split into simpler sentences: Porto Alegre spent about 200 million dollars per year on construction and services, this money is subject to participatory budgeting. Annual spending on fixed expenses such as debt service and pensions, is not subject to public participation.