code: def test_get_clause(self):
      entity = "House%20Ways%20and%20Means%20Committee"
      try:
          clause_add = ads_ins.get_clause(entity)
      except FlintError:
          print("Cannot access Wikidata")
      else:
          self.assertEqual(
              "which is a chief tax-writing comittee of the "
              "United States House of Representatives",
              clause_add,
          )
  
file_path: textflint/test/generation/transformation/DP/test_add_sub_tree.py
imports: import unittest
  from textflint.input.component.sample.dp_sample import DPSample
  from textflint.generation.transformation.DP.add_sub_tree import AddSubTree
  from textflint.common.utils.error import FlintError
label_desc: Use image node_id 3 for calling the TestSpecialAddSubtree obj's underlying member method code with example usage: obj.test_get_clause() without return types