Attend is a type of Be. Tend is a type of Attend. 
Consciousness is derived from Conscious. Consciousness is related to Animal. Adult is a type of Animal. Adult is a synonym of Dirty. 
Be <--IsA-- Attend <--IsA-- Tend 
Conscious <--DerivedFrom-- Consciousness <--RelatedTo--> Animal <--IsA-- Adult <--Synonym--> Dirty 