user: Question: How many heights are listed for Jesse Holley in the WR position? 
Columns: ['Position', 'Name', 'Jersey Number', 'Age', 'Height', 'Weight', 'College', 'Result']
Types: ['text', 'text', 'real', 'real', 'text', 'real', 'text', 'text']
Sample row: ['WR', 'Jesse Holley', 83.0, 25.0, "6'3", 216.0, 'North Carolina', 'Winner in Episode 10']
SQL:

assistant: SELECT COUNT("Height") FROM "Table" WHERE "Position" = 'WR' AND "Name" = 'Jesse Holley';