code: def labelizer(key):
      return {("a",): "first", ("b",): "second", ("c",): "third"}[key]
  
imports: from itertools import product
  import matplotlib.pyplot
  import numpy
  import pandas
  from statsmodels.graphics.mosaicplot import mosaic
label_desc: Use image node_id 2 for calling a global function with example usage: labelizer(key) and returns: dict