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Sentence analysis
8Spans
Sentence
Span Details
砲艦
gunboatnoun
は
topic markergrammar
沿岸
coast; shore; coastal area; coastal waters; inshore watersnoun
警備
security; guard; policingnoun, suru verb
に
direction, time, indirect object, or target markergrammar
使わ
use; make use of; employ; handle; spend; consume; speak-> 使うgodan verb
れ
passive, potential, or respect auxiliary-> れる/られるgrammar
た。
past tense or completed actiongrammar