Problem: Wwo sentences:
The 20 master computers are located in the United States , Canada and Korea , Mr. Kuo said .
The computers were located in the United States , Canada and South Korea , he said .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
I would like to congratulate Russia on the successful World Climate Change Conference last week .
Momentous happenings at the World Climate Conference in Moscow last week .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
Microsoft presented several options at the meeting , the consortium said in the statement .
Microsoft officials presented " several options " it is considering , the W3C posting said .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
Pen Hadow , who became the first person to reach the geographic North Pole unsupported from Canada , has just over two days of rations left .
Pen Hadow became the first man last week to reach the geographic North Pole on an unsupported trek through Canada , a journey of about 770 km .
Do they have the same meaning?

Answer:
no