In the downtown area , Penn Avenue is the main bisecting street of the Three Sister Bridges that form the Roberto Clemente Bridge , Andy Warhol Bridge and Rachel Carson Bridge .
Head entity: roberto clemente bridge Q7351643 20 21 22
Tail entity: three sister bridges Q7797803 14 15 16
Relation (head \u2192 tail): P527
Inverse relation (tail \u2192 head): P361