Complex sentence: Yan Borisovich Gamarnik (-- 1937) was a Soviet politician born in Zhytomyr in a Jewish family as Yakov Borisovich Puhdikovitch.
Split into simpler sentences: Yan Borisovich Gamarnik (-- 1937) was a Soviet politician. Gamarnik was born in Zhytomyr in a Jewish family as Yakov Borisovich Puhdikovitch.