you are likely to find Snake in/at/on Bed. you are likely to find Clothes in/at/on Bed. you are likely to find Clothes in/at/on Mall. 
the first thing you do when you Travel is Leave. Travel is related to Tourist. Tourist is related to Visitor. 
Snake --AtLocation--> Bed <--AtLocation-- Clothes --AtLocation--> Mall 
Leave <--HasFirstSubevent-- Travel <--RelatedTo--> Tourist <--RelatedTo--> Visitor 