Struggle is a type of Effort. Effort is a synonym of Attempt. Attempt is related to Experiment. Experiment is related to Try. 
Computer can be Ugly. Computer cannot be Alive. 
Struggle --IsA--> Effort <--Synonym--> Attempt <--RelatedTo--> Experiment <--RelatedTo--> Try 
Ugly <--HasProperty-- Computer --NotHasProperty--> Alive 