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ことは明白だ

it is obvious that

→ こと
phrase Rare #39,133
it is obvious that Follows a statement or clause to emphasize that it is clearly true. The clause may be followed by という.
JA: 彼が来ないことは明白だ。
EN: It’s obvious that he isn’t coming.

彼が家にいることは明白だ。

It is obvious that he is at home.

君が間違っていることは明白だ。

It’s obvious that you’re wrong.

君が嘘をついたということは明白だ。

It's obvious that you lied.

彼が嘘をついたということは明白だ。

It is clear that he lied.