inductive families of data types造句

Generalized algebraic data types were introduced independently by and prior by as extensions to inductive families of data types " ( or " inductive datatypes " ) found in Coq's Calculus of Inductive Constructions and other dependently typed languages, modulo the dependent types and except that the latter have an additional positivity restriction which is not enforced in GADTs.
It's difficult to find inductive families of data types in a sentence. 用inductive families of data types造句挺难的