Analyzer
Sentence analysis
8Spans
Sentence
Span Details
東京
Tokyonoun
一極集中
overconcentration; excessive concentration in one placenoun
を
object markergrammar
是正
correction; revision; rectificationnoun, suru verb
する
light/support verb with a noun or noun-like phrasegrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
が
subject markergrammar
ある。
be; exist; have; possess; there is available; be located; be situated; be equipped with; have as a facility or feature; happen; take place; come about; be in a completed state; be left as done-> 有るgodan verb, auxiliary