Indication is related to Note. Note is a synonym of Mention. Mention is the opposite of Ignore. Ignore is a synonym of Dismiss. 
you are likely to find Passage in/at/on House. you are likely to find Passage in/at/on Hotel. you are likely to find Sex in/at/on Hotel. Sex can cause/lead to Pregnancy. 
Indication <--RelatedTo--> Note <--Synonym--> Mention <--Antonym--> Ignore <--Synonym--> Dismiss 
House <--AtLocation-- Passage --AtLocation--> Hotel <--AtLocation-- Sex --Causes--> Pregnancy 