Original:  The Amazon also has an inland delta before the island of Maraj , and the  Danube has one in the valley on the Slovak-Hungarian border between Bratislava and Ia .
Revised:  The Amazon also has an inland delta before the island of Maraj , and the Sistan delta of Iran. The Danube has one in the valley on the Slovak-Hungarian border between Bratislava and Ia .
Edit intent: meaning-changed