He subdivided Old Danish into " Runic Danish " ( 800 - 1100 ) , Early Middle Danish ( 1100 - 1350 ) and Late Middle Danish ( 1350 - 1525 ) .
Head entity: late middle danish Q24204837 24 25 26
Tail entity: early middle danish Q24204836 15 16 17
Relation (head \u2192 tail): P155
Inverse relation (tail \u2192 head): P156