Evaluate the intensity of sadness in the tweet "Smartest way through any complex, hard &amp; lengthy negotiation is to #consult, not #insult - #BoJo please take note. Never too late to learn!". Choose from these categories: 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.