Analyzer
Sentence analysis
7Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
研究
research; study; investigationnoun, suru verb
は
topic markergrammar
未開拓
undeveloped; unexplored; untappedno-adjective, noun
の
possession, attribution, nominalizer, or nominal linkergrammar
分野
field; area; domain; branchnoun
だ。
plain copulagrammar