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Sentence analysis
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Sentence
Span Details
せっかく
with effort; at great pains; specially; rare; valuable; precious; long-awaited; kind; generous-> 折角adverb, noun, no-adjective
の
possession, attribution, nominalizer, or nominal linkergrammar
計画
plan; project; schedule; programnoun, suru verb
が
subject markergrammar
だめになった。
become useless; spoil; break; go bad; fail-> 駄目になるexpression, verb