In New York City , the greatest number are in hilly sections of the Bronx and Upper Manhattan , where most of the 10 or so retaining wall collapses in the city over the past 100 years have occurred , according to news accounts dating as early as 1906 .
Upper Manhattan /location/neighborhood/neighborhood_of New York City
New York City /location/location/contains Upper Manhattan
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Upper Manhattan
LOCATION
New York City
LOCATION
/location/neighborhood/neighborhood_of
New York City
LOCATION
Upper Manhattan
LOCATION
/location/location/contains