Complex sentence: This reform kept in force the previous voter qualifications: literacy requirement and an annual rent of at least 300 pesos or possessing real estate with a value of at least 1,000 pesos.
Split into simpler sentences: This reform kept in force the previous voter qualifications. These were the literacy requirement, and to have an annual rent of at least 300 pesos or to possess real estate with a value of at least 1,000 pesos.