The file adjnoun.gml contains the network of common adjective and noun
adjacencies for the novel "David Copperfield" by Charles Dickens, as
described by M. Newman.  Nodes represent the most commonly occurring
adjectives and nouns in the book.  Node values are 0 for adjectives and 1
for nouns.  Edges connect any pair of words that occur in adjacent position
in the text of the book.  Please cite M. E. J. Newman, Finding community
structure in networks using the eigenvectors of matrices, Preprint
physics/0605087 (2006).