Assertion: dynasty's emperor | /r/HasProperty | ill
Facets:
value: mentally
type: DEGREE
value: for a long time
type: TEMPORAL
Source sentences:
text: Having been mentally ill for a long time, the Emperor Lý Huệ Tông ultimately decided to cede the throne of the Lý dynasty to crown princess Lý Chiêu Hoàng in October of the lunar calendar, 1224.