  Each line
represents one predicate-argument relation, and an empty line
indicates the end of the sentence.  Columns of a line are separated by
tabs, and express the following information.

<ul>
  <li>Input string of the predicate word
  <li>Base form of the predicate word
  <li>POS of the predicate word (Penn-style POS tags)
  <li>POS of the base form of the predicate word
  <li>Position of the predicate word in a sentence (starting from 0)
  <li>Predicate type
  <li>Label of the relation between the pred