input: Write a python function to suggest a sentence based on the last word of the sentence.
  assert suggest_sentence("cute") in ["the cat is cute"]
  assert suggest_sentence("smart") in ["the dog is smart"]
  assert suggest_sentence("noisy") in ["the duck is noisy"]
output: def suggest_sentence(word):
      suggestions = {
          "cute": "the cat is cute",
          "smart": "the dog is smart",
          "noisy": "the duck is noisy"
      }
      return suggestions.get(word, "")