Complex sentence: They first come upon Ninshubur and attempt to take her, but Inanna stops them, insisting that Ninshubur is her loyal servant, who had rightly mourned her while she was in the underworld.
Split into simpler sentences: They first come upon Ninshubur and attempt to take her. Inanna refuses, as Ninshubur is her loyal servant, who rightly mourned her while she was in the underworld.