Complex sentence: Amshinov is a Chassidic dynasty that was founded by the Rebbe Reb Yaakov Dovid Kalish it originated in the Polish town of Mszczonów, known in Yiddish as "Amshinov".
Split into simpler sentences: Amshinov is a chassidic dynasty that was founded by the Rebbe Reb Yaakov Dovid Kalish. It originated in the Polish town of Mszczonów, known in Yiddish as "Amshinov".