Analyzer
Sentence analysis
8Spans
Sentence
Span Details
玉滴石
hyalite; water opal; Müller's glassnoun
は、
topic markergrammar
火山岩
volcanic rocknoun
の
possession, attribution, nominalizer, or nominal linkergrammar
空洞
cavity; hollow; cavern; cavernousnoun, no-adjective
に
direction, time, indirect object, or target markergrammar
産する
bear (a child); give birth; produce; yield; bear (fruit/results)suru verb
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb