不(ふ)思(し)議(ぎ)な() fushiginaの noは wa彼(かれ) kareが gaそれ soreを o知(し)っ()て()い()た() shitteitaこと kotoだ da。 What's strange is that he knew about it. Literal Strange [nominalizer-の] [topic-は] he [subject-が] that [object-を] knew thing [copula-だ]. 不思議なのは~ことだ is a cleft-like structure: 'the strange thing is that...' Nominalizer の + は sets up the topic; ことだ closes the comment. daily lifenominalizer こと~のは (nominalized topic)
不(ふ)思(し)議(ぎ)な() fushiginaの noは wa彼(かれ) kareが gaそれ soreを o知(し)っ()て()い()た() shitteitaこと kotoだ da。 What's strange is that he knew about it. Literal Strange [nominalizer-の] [topic-は] he [subject-が] that [object-を] knew thing [copula-だ]. 不思議なのは~ことだ is a cleft-like structure: 'the strange thing is that...' Nominalizer の + は sets up the topic; ことだ closes the comment. daily lifenominalizer こと~のは (nominalized topic)