skos:altLabel | - Route 51
- freeway
- SR 51
- Arizona 51
- Arizona State Route 50
- Arizona State Route 51#History
- Piestewa Freeway
- Route 51
- SR 51 (Piestewa Freeway)
- SR 51
- State Route 51
- State Route 517
- State Route 51
- U.S. Route 55 (Arizona-Wisconsin)
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