Convey is a synonym of Mean. Mean is related to Person. Person does not want (to) Rain. 
Organism is related to Animal. Animal is a different concept from Bug. Secret can Bug. Secret is related to Sauce. 
Convey <--Synonym--> Mean <--RelatedTo--> Person --NotDesires--> Rain 
Organism <--RelatedTo--> Animal <--DistinctFrom--> Bug <--CapableOf-- Secret <--RelatedTo--> Sauce 