user: Question: How many notes are there for the Devon Alexander vs. Shawn Porter fight?
Columns: ['Date', 'Location', 'Fight', 'Division', 'Titles', 'Rematch', 'TV', 'Promoter', 'Notes']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['November 9', 'Corpus Christi , USA', 'Mikey Garcia vs. Roman Martinez', 'Featherweight', 'WBO Super Featherweight', 'No', 'HBO', 'Top Rank', 'Undercard of Donaire/Darchinyan']
SQL:

assistant: SELECT COUNT("Notes") FROM "Table" WHERE "Fight" = 'Devon Alexander vs. Shawn Porter';