Visit is a type of Tour. Visit is related to Join. Join is the opposite of Opt. Opt is a synonym of Select. 
Clear is related to Condition. Fitness is a type of Condition. 
Tour <--IsA-- Visit <--RelatedTo--> Join <--Antonym--> Opt <--Synonym--> Select 
Clear <--RelatedTo--> Condition <--IsA-- Fitness 