code: def demo_multiposition_feature():
      """
      The feature/s of a template takes a list of positions
      relative to the current word where the feature should be
      looked for, conceptually joined by logical OR. For instance,
      Pos([-1, 1]), given a value V, will hold whenever V is found
      one step to the left and/or one step to the right.
  
      For contiguous ranges, a 2-arg form giving inclusive end
      points can also be used: Pos(-3, -1) is the same as the arg
      below.
      """
      postag(templates=[Template(Pos([-3, -2, -1]))])
  
imports: import os
  import pickle
  import random
  import time
  from nltk.corpus import treebank
  from nltk.tag import BrillTaggerTrainer, RegexpTagger, UnigramTagger
  from nltk.tag.brill import Pos, Word
  from nltk.tbl import Template, error_list
label_desc: Use image node_id 5 for calling a global function with example usage: demo_multiposition_feature() without return types