Complex sentence: Proto-Iranian, is the reconstructed proto-language of the Iranian languages branch of Indo-European language family, and as such, the ancestor of the Iranian languages such as Persian, Sogdian, Zazaki, Mazandarani, Kurdish and others.
Split into simpler sentences: Proto-Iranian, is the reconstructed proto-language of the Iranian languages branch of Indo-European language family. It is the ancestor of the Iranian languages such as Persian, Sogdian, Zazaki, Mazandarani, Kurdish and others.