Input (grade 13): On the evidence of Lucian, the Parthians still held the southern, Roman bank of the Euphrates (in Syria) as late as 163 (he refers to a battle at Sura, which is on the southern side of the river).
Output (grade 10): On the evidence of Lucian, the Parthians still held the southern, Roman bank of the Euphrates (in Syria) as late as 163.