Analyzer
Sentence analysis
8Spans
Sentence
Span Details
彼ら
they; thempronoun
は
topic markergrammar
川
river; stream; River; the ... rivernoun, suffix
の
possession, attribution, nominalizer, or nominal linkergrammar
源流
source of a river; headwaters; origin; sourcenoun
を
object markergrammar
探検
exploration; expeditionnoun, suru verb
した。
light/support verb with a noun or noun-like phrase-> するgrammar