Weight is related to Pressure. Pressure is related to Heavy. Heavy is related to Rock. Rock is related to Corporation. 
you are likely to find Cat in/at/on Ground. you are likely to find Cat in/at/on Nature. 
Weight <--RelatedTo--> Pressure <--RelatedTo--> Heavy <--RelatedTo--> Rock <--RelatedTo--> Corporation 
Ground <--AtLocation-- Cat --AtLocation--> Nature 