Premise: Marble Hill is the northernmost neighborhood in the New York City borough of Manhattan . It is the only Manhattan neighborhood on the mainland of North America . Politically a part of Manhattan and New York County , Marble Hill became an island in the Harlem River when it was separated from the island of Manhattan by the construction of the Harlem Ship Canal in 1895 .
Hypothesis: Marble Hill is in the town of Manhattan.
Label: CONTRADICTION