CREATE TABLE table_203_296 (id DECIMAL, "country" TEXT, "total gdp  ( nominal ) \ ( billion us$ ) " TEXT, "gdp per capita\ ( us$ ,  ppp ) " TEXT, "gdp growth , \ 2007-2011\ ( in % ) " DECIMAL, "hdi" TEXT)

seychelles and guinea bissau have the same total gdp -lrb- nominal -rrb- of ?
SELECT "total gdp (nominal)\n(billion us$)" FROM table_203_296 WHERE "country" = 'seychelles'
SELECT "total gdp (nominal)\n(billion us$)" FROM "table_203_296" WHERE "country" = 'seychelles'