Assertion: fortress's wall | /r/CapableOf | dip into the lycus valley
Facets:
value: at a point
type: TEMPORAL
value: sharply
type: DEGREE
Source sentences:
text: At a point just south of the Blachernae quarter, a section called the Mesoteichion, the walls dip sharply into the Lycus Valley, exposing that area to enfilading fire from higher ground on the enemy side.