user: Question: What is the aa length when the protein name is C11orf73?
Columns: ['Species', 'Common Name', 'Protein Name', 'Accession Number', 'NT Length', 'NT Identity', 'AA Length', 'AA Identity', 'E-Value']
Types: ['text', 'text', 'text', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Homo sapiens', 'Human', 'C11orf73', 'NM_016401', '1187 bp', '100%', '197 aa', '100%', '0']
SQL:

assistant: SELECT "AA Length" FROM "Table" WHERE "Protein Name" = 'C11orf73';