you are likely to find Package in/at/on Mail. Mail is related to Service. Service is related to Bar. 
Double is related to Measurement. Measurement is a synonym of Measure. Measure is related to Rule. Rule is related to Leader. 
Package --AtLocation--> Mail <--RelatedTo--> Service <--RelatedTo--> Bar 
Double <--RelatedTo--> Measurement <--Synonym--> Measure <--RelatedTo--> Rule <--RelatedTo--> Leader 