Increase is related to Operation. Operation is related to Open. Open is related to Slap. 
you are likely to find Fork in/at/on Salad. you are likely to find Fork in/at/on Back. Back is related to Reserve. Reserve is related to Request. 
Increase <--RelatedTo--> Operation <--RelatedTo--> Open <--RelatedTo--> Slap 
Salad <--AtLocation-- Fork --AtLocation--> Back <--RelatedTo--> Reserve <--RelatedTo--> Request 