Columbia subject headings:
Bulgarian language--Sentences.
Polish language--Sentences.
Russian language--Sentences.
Semantics.
Harvard subject headings:
Bulgarian language--Semantics.
Polish language--Semantics.
Russian language--Semantics.
Slavic languages--Semantics.
Princeton subject headings:
Bulgarian language--Sentences.
Polish language--Sentences.
Russian language--Sentences.
Semantics.