Person wants (to) Explain. Recruit is a type of Person. 
Valid is related to Reasonable. Reasonable is a synonym of Natural. Natural is related to Shade. Shade is related to Hidden. 
Explain <--Desires-- Person <--IsA-- Recruit 
Valid <--RelatedTo--> Reasonable <--Synonym--> Natural <--RelatedTo--> Shade <--RelatedTo--> Hidden 