What is the relationship between Paccar and Truck in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Truck maker Scania, a unit of Volkswagen AG (Other OTC: VLKAF - news ) , said its orders rose 41 percent in the second quarter in Europe, compared to the same period last year, while U.S. rival Paccar Inc (NasdaqGS: PCAR - news ) said orders at its European unit, DAF, were 60 percent higher in the quarter, as growing freight traffic -- a key economic indicator -- drove sales.

Answer: product_or_material_produced