Corporation is a synonym of Firm. Firm is similar to Steady. Steady is related to Ready. Ready is related to Fire. 
you are likely to find Carpet in/at/on Office. Office is related to Inside. 
Corporation <--Synonym--> Firm <--SimilarTo--> Steady <--RelatedTo--> Ready <--RelatedTo--> Fire 
Carpet --AtLocation--> Office <--RelatedTo--> Inside 