user: Question: What is the rank of rider Gary Johnson, who had a speed of 120.979 mph?
Columns: ['Rank', 'Rider', 'Team', 'Time', 'Speed']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [1.0, 'Michael Rutter', 'Ducati', "21' 52.169", '122.609 mph']
SQL:

assistant: SELECT "Rank" FROM "Table" WHERE "Speed" = '120.979 mph' AND "Rider" = 'Gary Johnson';