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Sentence
Span Details
宇宙環境センター
Space Environment Centernoun
は
topic markergrammar
太陽活動
solar activitynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
監視
monitoring; surveillance; observation; watchingnoun, suru verb
を
object markergrammar
行っ
perform; carry out; conduct; do-> 行うgodan verb
ている。
ongoing or resultant stategrammar