code: def simple_stemmer(text):
      """lambda fn for stemming"""
      ps = PorterStemmer()
      text = " ".join([ps.stem(word) for word in text.split()])
      return text
  
imports: import re
  import os
  import pickle
  import urllib
  import tarfile
  import numpy
  import pandas
  import nltk
  from nltk.stem import PorterStemmer
  from nltk.tokenize.toktok import ToktokTokenizer
  from gensim.models.keyedvectors import KeyedVectors
  from sklearn.model_selection import train_test_split
  from bs4 import BeautifulSoup
label_desc: Use image node_id 8 for calling a global function with example usage: simple_stemmer(text) and returns: text