Guitar can be used for Teach. you are likely to find Guitar in/at/on Store. you are likely to find Manager in/at/on Store. 
Internet is related to Connect. Connect is a type of Be. you are likely to find Cat in/at/on Be. you are likely to find Cat in/at/on Chair. 
Teach <--UsedFor-- Guitar --AtLocation--> Store <--AtLocation-- Manager 
Internet <--RelatedTo--> Connect --IsA--> Be <--AtLocation-- Cat --AtLocation--> Chair 