Assertion: battlement's opening | /r/HasProperty | set in marshy place
Facets:
Source sentences:
text: The word comes from the Italian casamatta, the etymology of which is uncertain, though it could derive from casa (in the sense of "hut"), and matta (Latin matta), "done with reeds and wickers", thus a low-roof hut without windows or other openings set in marshy place.