id	keyword
clogic-193976	katyn
clogic-193976	evidence
clogic-193976	documents
clogic-193976	polish
clogic-193976	soviet
clogic-193976	report
clogic-193976	version
clogic-193976	germans
clogic-193976	nkvd
clogic-193976	massacre
clogic-193976	packet
clogic-193976	prisoners