code: def stem(w):
      """
      Stem input
  
      Args:
          w (str): word to extract stem
  
      Returns:
          str: stem of w
      """
      return stemmer.stem(w)
  
imports: import nltk
  import nltk.corpus
  import numpy
  import requests
  from gensim.models.keyedvectors import KeyedVectors
  from nltk.corpus import wordnet
  from nltk.stem.snowball import SnowballStemmer
  from nlp_architect.utils.generic import license_prompt
label_desc: Use image node_id 1 for calling a global function with example usage: stem(w) and returns: stemmer