user: Question: What number in series was the episode written by Eric Gilliland?
Columns: ['No. in series', 'Title', 'Directed by', 'Written by', 'Original air date', 'Production code']
Types: ['real', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, '" Pilot "', 'Terry Hughes', 'Bonnie Turner & Terry Turner & Mark Brazill', 'August23,1998', 101.0]
SQL:

assistant: SELECT "No. in series" FROM "Table" WHERE "Written by" = 'Eric Gilliland';