-- in.journal --
commodity USD
commodity EUR
commodity GBP
commodity USD
commodity JPY
commodity EUR

-- expect --
in.journal:1:1: duplicated-commodity: duplicated commodity declaration: USD
in.journal:2:1: duplicated-commodity: duplicated commodity declaration: EUR
in.journal:4:1: duplicated-commodity: duplicated commodity declaration: USD
in.journal:6:1: duplicated-commodity: duplicated commodity declaration: EUR