Complex sentence: Field, outraged that women were being prosecuted for engaging in prostitution when their male clients weren't, refused to convict women charged with the crime; her advocacy led to a 1973 Oregon law that provided for equal legal treatment of prostitutes and their clients.
Split into simpler sentences: Field, outraged that women were being prosecuted for engaging in prostitution when their male clients weren't, refused to convict women charged with the crime. Her advocacy led to a 1973 Oregon law that provided for equal legal treatment of prostitutes and their clients.