code: public final SequenceLabel createSequence(final String seqString,
        final String seqType, final Span seqSpan) {
      final SequenceLabel sequence = new SequenceLabel();
      sequence.setValue(seqString);
      sequence.setType(seqType);
      sequence.setSpan(seqSpan);
      return sequence;
    }
docs: Constructs a {@link SequenceLabel} as a String with a type and a
  {@link Span} specified in terms of the number of tokens it contains.
  
  @param seqString
  string to be added to a Name object
  @param seqType
  the type of the Name
  @param seqSpan
  the span of the Name
  @return a new Name object