user: Question: Who is the Conductor who had Stephen Barlow as Director?
Columns: ['Year', 'Production', 'Composer', 'Conductor', 'Director']
Types: ['real', 'text', 'text', 'text', 'text']
Sample row: [2014.0, 'The Snowmaiden [ citation needed ]', 'Rimsky-Korsakov', 'Charles Peebles', 'Christopher Cowell']
SQL:

assistant: SELECT "Conductor" FROM "Table" WHERE "Director" = 'Stephen Barlow';