Complex sentence: The directive led to dozens of arrests at three protests that occurred between May 22 and May 24 of 2015 over police killings of Black women in the US, after police directed protesters to move on to the sidewalk and protesters refused and resisted being cited.
Split into simpler sentences: The directive led to dozens of arrests at three protests over police killings of Black women in the US that occurred between May 22 and May 24 of 2015. Several times, police directed protesters to move on to the sidewalk, after which protesters refused to move and resisted being cited.