Virus is a type of Species. Species is related to Man. Man is related to Teacher. 
Humanity is related to Moral. Moral is related to Support. Support is a synonym of Rock. 
Virus --IsA--> Species <--RelatedTo--> Man <--RelatedTo--> Teacher 
Humanity <--RelatedTo--> Moral <--RelatedTo--> Support <--Synonym--> Rock 