This model identifies complex NPs modified by non-finite nominal clauses ("appositives") in the input sentence.
Try the test sentence:
My name is Sarah and I live in London[,] the capital of England.
Note that accuracy is greatly improved if you place square brackets around the left boundary of the non-finite nominal clause.
The model was derived using code adapted from an original program written by Dr. Le An Ha at the University of Wolverhampton.