Publicity is derived from Public. Public is related to Famous. Famous is related to Fame. 
Threshold is related to Level. Level is a type of Place. City is a type of Place. you are likely to find Office in/at/on City. 
Publicity --DerivedFrom--> Public <--RelatedTo--> Famous <--RelatedTo--> Fame 
Threshold <--RelatedTo--> Level --IsA--> Place <--IsA-- City <--AtLocation-- Office 