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Sentence
Span Details
老人愛
gerontophilianoun
は、
topic markergrammar
精神医学
psychiatrynoun
の
possession, attribution, nominalizer, or nominal linkergrammar
分野
field; area; domain; branchnoun
で
location, means, or scope markergrammar
研究
research; study; investigationnoun, suru verb
される
passive, potential, or respect auxiliarygrammar
ことがある。
have done (something); something has occurred; sometimes; there are times when-> 事があるexpression, verb