Assertion: astronomical clock tower | /r/HasProperty | designed by su song
Facets:
value: in song china
type: LOCATION
Source sentences:
text: In Song China, an astronomical clock tower was designed by Su Song and erected at Kaifeng in 1088, featuring a liquid escapement mechanism.
text: In Song China, an astronomical clock tower was designed by Su Song and erected at Kaifeng in 1088, featuring a liquid escapement mechanism.