Assertion: calendar's month | /r/HasProperty | inserted intercalated
Facets:
value: in order to deal
type: PURPOSE
value: roughly every third year leading
type: TEMPORAL
Source sentences:
text: In order to deal with the 11 day difference between 12 lunar months and 1 solar cycle an extra month was inserted ("intercalated") roughly every third year leading to a leap year with about 384 days in it.