Complex sentence: In contrast to the poor evidence for the existence of, the corresponding arsenic ion, ortho-arsenite, is known, and an example is Ag 3 AsO 3 as well as the polymeric meta-arsenite.
Split into simpler sentences: In contrast to the paucity of evidence for, the corresponding arsenic ion, ortho-arsenite, is known. An example is Ag 3 AsO 3 as well as the polymeric meta-arsenite.