Challenge NNP O
of IN B-PP
the DT B-NP
August NNP B-NP
month NNP B-NP
. . O
Her PP$ B-NP
's POS B-NP
chancellor NNP O
at IN B-PP
Lawson NNP I-NP
To TO I-VP
economists NNS B-NP
, , O
foreign JJ B-NP
exchange NN I-NP