Table 3.

Expansion word set result

The query number	Query keyword	Expansion word set	Expansion type
1	Viral hepatitis	Viral hepatitis, hepatitis A, hepatitis B, hepatitis C, hepatitis D, hepatitis E	Hyponym
2	Serum hepatitis	Serum hepatitis, hepatitis b	Synonym
3	cirrhosis hepatitis B	Cirrhosis hepatitis B, hepatitis B, serum hepatitis	Hypernym, synonym
4	Acute hepatitis	Acute hepatitis, acute hepatitis A, acute hepatitis B, acute hepatitis C, acute hepatitis D, acute hepatitis E, acute icteric hepatitis and acute non-icteric hepatitis	Hyponym, instance
5	Acute hepatitis B	Acute hepatitis B, acute icteric hepatitis B, acute non-icteric hepatitis B	Instance