Problem: Wwo sentences:
The company claims it 's the largest single Apple VAR Xserve sale to date .
The company claimed it is the largest sale of Xserves by an Apple retailer .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
He has established a group to revise the constitution , possibly to protect private property .
He also left out any reference to amending the constitution to guarantee private property rights .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
Yale spokesman Tom Conroy said the university was prepared to keep the campus running with temporary workers and managers doing extra work .
Yale spokesman Tom Conroy said the university planned to keep the campus running with managers and temporary workers performing union workers ' jobs .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
The Bluetooth SIG made its announcement at the Bluetooth World Congress in Amsterdam this week .
A new version of the Bluetooth specification was officially launched today at the start of the Bluetooth World Congress in Amsterdam .
Do they have the same meaning?

Answer:
yes