How many times was Ian Maxtone-Graham nominated for an award in Writers Guild of America, USA?
"Ian Maxtone-Graham" is the person; nominated refers to result = 'Nominee'; 'Writers Guild of America, USA' is the organization
SELECT COUNT(award_id) FROM Award WHERE person = 'Ian Maxtone-Graham' AND organization = 'Writers Guild of America, USA' AND result = 'Nominee';