you are likely to find Student in/at/on Bar. you are likely to find Human in/at/on Bar. Human is related to Person. Person wants (to) Be. 
you would Celebrate because Alive. Alive is related to Plant. 
Student --AtLocation--> Bar <--AtLocation-- Human <--RelatedTo--> Person --Desires--> Be 
Celebrate --MotivatedByGoal--> Alive <--RelatedTo--> Plant 