Complex sentence: Portions of the law were superseded in 1948, after which the Governor was popularly elected, and, in 1952, Puerto Rico was allowed to draft its own Constitution, which allowed greater autonomy as a Commonwealth.
Split into simpler sentences: Portions of the law were superseded in 1948, after which the Governor was popularly elected. In 1952, Puerto Rico was allowed to draft its own Constitution, which allowed greater autonomy as a Commonwealth.