Complex sentence: Seb Seliyer (lit. "tin-worker") is an Indo-Aryan language spoken by Gypsies in Iran, but their language is distinct from that of other Gypsies in Iran, who speak closely related dialects.
Split into simpler sentences: Seb Seliyer (lit. "tin-worker") is an Indo-Aryan language of Iran. Speakers are Gypsies, but their language is distinct from that of other Gypsies in Iran, who speak closely related dialects.