Q: The researchers found only empty cavities and scar tissue where the tumors had been .

No tumors were detected ; rather , empty cavities and scar tissue were found in their place .

Please tell me if the sentences above mean the same.
A: yes
Q: On Monday , it also announced the resignation of Chairman and Chief Executive Officer Phil Condit .

The move came just hours after the company 's Chief Executive Officer Phil Condit resigned .

Please tell me if the sentences above mean the same.
A: yes
Q: On Sunday , the experts will perform the first simultaneous release of five whales from a single stranding incident in the United States .

Today , the experts will perform the United States ' first simultaneous release of five whales from a single stranding incident .

Please tell me if the sentences above mean the same.
A:
yes