theatre	theatr	0.1374
collection	collect	0.1374
scores	scor	0.1374
Russian	rus	0.1374
Mariinski theatre	mariinsk theatr	0.1374
music	mus	0.1374
congress	congr	0.0497
library	libr	0.0497
opera scores	oper scor	0.0497
USA congress	us congr	0.0497
microfilm	microfilm	0.0497
collection of opera	collect of oper	0.0497
James Billington	jam billingt	0.0497
agreement	agr	0.0497
copying	cop	0.0497