Situation is related to Top. Top is related to Captain. 
Use is related to Cut. Cut is related to Shark. you are likely to find Shark in/at/on Nightmare. Nightmare is derived from Night. 
Situation <--RelatedTo--> Top <--RelatedTo--> Captain 
Use <--RelatedTo--> Cut <--RelatedTo--> Shark --AtLocation--> Nightmare --DerivedFrom--> Night 