Complex sentence: Their petition related to the 1793 Fugitive Slave Actwas criticized for encouraging cruelty and brutality, and noted the danger which free blacks risked of being kidnapped and sold into slavery.
Split into simpler sentences: Their petition related to the 1793 Fugitive Slave Act. They criticized it for encouraging cruelty and brutality, and noted the danger which free blacks risked of being kidnapped and sold into slavery.