Problem: Wwo sentences:
It would be difficult to overestimate the potential dangers of the Remote Procedure Call ( RPC ) vulnerability .
The flaw involves the Remote Procedure Call ( RPC ) protocol , which deals with inter-computer communications .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
British-born astronaut Michael Foale is about to fly into space to take up his post as commander of the International Space Station .
British-born astronaut Michael Foale is on his way to take command of the international space station .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
One Republican sent out a flier this week citing a 3.8-percent increase in the S & P 500 stock index since passage of the tax cuts in May .
One Republican flier cited a 3.8 percent increase in the S & P 500 stock index since passage of the tax cuts in May .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
He was the Ace of Diamonds in a pack of cards depicting Iraqi fugitives that has been issued to U.S. troops .
He was the ace of diamonds in a U.S. deck of cards showing pictures of most-wanted Iraqi leaders .
Do they have the same meaning?

Answer:
yes