Determine how strongly sadness is expressed in the following tweet. Use the scale: 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.
Tweet: The two Brians, @BlackEyedNBlues &amp; @onthehorn500, also known as the Nigella Lawsons of #blues &amp; #pizza.
0: no sadness can be inferred