Problem: Wwo sentences:
A man , 19-year-old Antowain Johnson , ''tried to go back in and get the rest of them but the smoke wouldn 't let him , ' ' she said .
She said another man , 19-year-old Antowain Johnson , " tried to go back in ... but the smoke wouldn 't let him . "
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
Tehran has said it will only sign the protocol if a ban on imports of peaceful Western nuclear technology is lifted .
Tehran has made clear it will only sign the Additional Protocol introducing such inspections if a ban on the import of civilian Western nuclear technology is lifted .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
A woman was listed in good condition at Memorial 's HealthPark campus , he said .
His injured co-worker , a woman , was hospitalized as well but listed in good condition , Reichert said .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
Token-issuing framework provides capabilities that build on WS-Security and define extensions to request and issue security tokens and to manage trust relationships and secure conversations .
Within WSE 2.0 , WS-Trust , WS-SecureConversation build on WS-Security and define extensions to request and issue security tokens and to manage relationships and secure conversations .
Do they have the same meaning?

Answer:
yes