Catholic Slavs
The Catholic Slavic nations include all West Slavs ( Poles , Czechs and Slovaks and all their sub-ethnicities ex . 
<triplet> West Slavs <subj> Poles <obj> has part <triplet> Poles <subj> West Slavs <obj> subclass of <triplet> Czechs <subj> West Slavs <obj> part of <triplet> Slovaks <subj> West Slavs <obj> part of