Ease is related to Comfort. Comfort is related to Good. Good is related to Progress. Career is a type of Progress. 
Observation is related to Telescope. Telescope is a synonym of Scope. Scope is a synonym of Sight. 
Ease <--RelatedTo--> Comfort <--RelatedTo--> Good <--RelatedTo--> Progress <--IsA-- Career 
Observation <--RelatedTo--> Telescope <--Synonym--> Scope <--Synonym--> Sight 