user: Question: What is TV Companions Featured, when Author is "William Emms"?
Columns: ['Title', 'Author', 'ISBN UK', 'ISBN US', 'TV companions featured']
Types: ['text', 'text', 'text', 'text', 'text']
Sample row: ['Search for the Doctor', 'Dave Martin', 'ISBN 0-7278-2087-7', 'ISBN 0-345-33224-5', 'K-9']
SQL:

assistant: SELECT "TV companions featured" FROM "Table" WHERE "Author" = 'William Emms';