Assertion: fortress's wall | /r/Synonym | the sigma
Facets:
Source sentences:
text: The Third Military Gate (Πύλη τοῦ Τρίτου), named after the quarter of the Triton ("the Third") that lies behind it, is situated shortly after the Pege Gate, exactly before the C-shaped section of the walls known as the "Sigma", between towers 39 and 40.