Analyze the tweet "Sometimes people leave you halfway through the wood. Do not let it grieve you, no one leaves for good. #youarenotalone #nooneisalone" to classify the intensity of the emotion sadness. Your options are: 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