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Sentence analysis
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Sentence
Span Details
鉄塩
iron salt; ferric saltnoun
は
topic markergrammar
水処理
water treatment; water processingnoun
に
direction, time, indirect object, or target markergrammar
使わ
use; make use of; employ; handle; spend; consume; speak-> 使うgodan verb
れる
passive voice; suffering passive; potential form; spontaneous occurrence; honorific (sonkeigo)auxiliary verb, auxiliary
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb