Assume is a synonym of Undertake. Undertake is a synonym of Contract. Contract is a synonym of Narrow. 
Transmit is a synonym of Channel. Channel is related to English. English is related to Literature. 
Assume <--Synonym--> Undertake <--Synonym--> Contract <--Synonym--> Narrow 
Transmit <--Synonym--> Channel <--RelatedTo--> English <--RelatedTo--> Literature 