Complex sentence: AIC is the first organization in the U.S. to use innovative legal strategies to advocate for the civil rights of children born with variations of reproductive or sexual anatomy and their families under American law.
Split into simpler sentences: AIC is the first organization in the U.S. to use innovative legal strategies to advocate for the civil rights of children born with variations of reproductive or sexual anatomy. AIC's advocacy is focused on the promotion of the rights of children and their families under American law.