Expression: 'As far as the sentence, I think it's OK'

[Tom]

Hi

Could you please tell me if both of the following expressions are correct?

1- As far as the sentence, I think it's OK.
2- As far as the sentence is concerned, I think it's OK.

Tom

[Alan]

Hi Tom,

I am happier with number 2. I think as far as the sentence is too vague. It's an unfinished statement and prompts the question: As far as as what?

A
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