Drain is part of Shower. Shower is a type of Provide. Provide is related to Employ. 
Young is a type of Animal. Animal is related to Beat. Beat is a type of Pace. Pace is related to Bar. 
Drain --PartOf--> Shower --IsA--> Provide <--RelatedTo--> Employ 
Young --IsA--> Animal <--RelatedTo--> Beat --IsA--> Pace <--RelatedTo--> Bar 