user: Question: What is the total series numbers that is directed by Jefferson Kibbee and has a production code of 2398191?
Columns: ['No. in series', 'No. in season', 'Title', 'Director', 'Writer(s)', 'Original air date', 'Production code']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [192.0, 1.0, '"Divorce Dominican Style"', 'Chip Chalmers', 'Carol Mendelsohn', 'July27,1998', '2397184']
SQL:

assistant: SELECT SUM("No. in series") FROM "Table" WHERE "Director" = 'Jefferson Kibbee' AND "Production code" = '2398191';