Observation is related to Examination. Comparison is a type of Examination. Comparison is a synonym of Compare. 
Party is related to Alcohol. Alcohol is related to Neat. Neat is related to Cool. 
Observation <--RelatedTo--> Examination <--IsA-- Comparison <--Synonym--> Compare 
Party <--RelatedTo--> Alcohol <--RelatedTo--> Neat <--RelatedTo--> Cool 