Here are two sentences:

It appears that the machine was cracked using a ptrace exploit by a local user immediately after the exploit was posted on BugTraq . "

" It appears that the machine was cracked using a ptrace exploit by a local user immediately after the exploit was posted , " it added .

yes

Here are two sentences:

" That doesn 't mean to say it doesn 't exist , " said Mr. Chandler , but simply that his team hasn 't uncovered evidence indicating such a link .

" That doesn 't mean to say it doesn 't exist , " Mr. Chandler said , but simply that his team has found no such evidence .

yes

Here are two sentences:

No rabies vaccine is available for humans in Zimbabwe and if it was it would be too expensive for most bitten by infected dogs .

Health professionals say there is no rabies vaccine for humans in Zimbabwe and , even if it was available , it is too expensive for most bitten by infected dogs .
yes