For the tweet "Why is it that we rejoice at a birth and grieve at a funeral? It is because we are not the person involved. ― Mark Twain", assess the intensity of the emotion sadness. Choose one of the following: 0: no sadness can be inferred, 1: low amount of sadness can be inferred, 2: moderate amount of sadness can be inferred, 3: high amount of sadness can be inferred.
0: no sadness can be inferred