Update to remove grammar errors: The second is that native Japanese speakers don't know correct Japanese grammar, or there might not be only one correct Japanese grammar.
The second sentence is wrong.

• I think the problem is that the sentence is not grammatically correct. The first sentence is correct, but the second one is not. – user228891 Oct 20 '16 at 14:00
• @user228891: I think the problem is that the sentence is not grammatically correct. The first sentence is correct, but the second one is not. – user
The second sentence is wrong.
The first sentence is correct.
The second sentence is wrong.
The correct answer is "The second sentence is wrong."
The correct answer is "The second sentence is wrong."
The correct answer is "The second sentence is wrong."
The correct answer is "The second sentence is wrong."
The correct answer is "The second sentence is wrong."
The correct answer is "The second sentence is wrong."
The correct answer is "The second