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A broad public stairway known as the Grauert Causeway met the road at the base of cliff at a viaduct crossing over a rail right of way Now abandoned , it has been replaced by a metal stairwell structure which connects to the Port Imperial station .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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