Surrounding is related to Lip. you are likely to find Lip in/at/on Mouth. Mouth is related to Nose. 
Rental is related to Unit. Company is a type of Unit. you are likely to find Leader in/at/on Company. 
Surrounding <--RelatedTo--> Lip --AtLocation--> Mouth <--RelatedTo--> Nose 
Rental <--RelatedTo--> Unit <--IsA-- Company <--AtLocation-- Leader 