318540
The coins were inspired by the contemporary silver Islamic dirham , and in common with it ( and unlike the Byzantine Empire 's gold and copper coinage , or the earlier hexagram ) featured initially no human representations , sporting instead the names and titles of the Byzantine emperor or emperors on the reverse and a cross on steps on the obverse .
 Byzantine, Byzantine
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Byzantine, Byzantine