shallu vs grain sorghum

shallu and grain sorghum both are nouns.

Word	Noun	Adjective	Verb	Adverb
shallu	Yes	No	No	No
grain sorghum	Yes	No	No	No

As nouns, grain sorghum is a hypernym of shallu; that is, grain sorghum is a word with a broader meaning than shallu:

shallu: sorghum having slender dry stalks and small hard grains; introduced into United States from India
grain sorghum: any of several sorghums cultivated primarily for grain

shallu (noun)	grain sorghum (noun)
sorghum having slender dry stalks and small hard grains; introduced into United States from India	any of several sorghums cultivated primarily for grain