Assertion: regiment's unit | /r/HasProperty | exercised by their commanders
Facets:
value: least monthly
type: TEMPORAL
Source sentences:
text: But this goal remained elusive and the youngest son of Gustav I of Sweden (Gustav Vasa), Charles IX of Sweden, instituted a new rule in 1609, when he was king, that the units had to be inspected and exercised at least monthly by their commanders.