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Sentence analysis
5Spans
Sentence
Span Details
予期せぬ
unexpected; unforeseenexpression, noun-modifying
障害
obstacle; barrier; hindrance; disability; impairment; disorder; steeplechase (horse racing); obstacle race; steeplechase (athletics)noun, suru verb
が
subject markergrammar
発生
occurrence; outbreak; emergence; generation; production; development; growth; ontogenynoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar