Analyzer
Sentence analysis
10Spans
Sentence
Span Details
線路
railway track; railway line; railroadnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
バラスト
ballast (for ships, submarines, balloons); ballast (for road or railway foundations)noun
は
topic markergrammar
定期的
periodic; regular; routinena-adjective
に
adverbial form after an adjectival suffixgrammar
交換
exchange; swap; replacementnoun, suru verb
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar