Do the following sentences say the same thing?
A man swims underwater.
A woman is swimming underwater.

2

Do the following sentences say the same thing?
Israel vows to deny Hezbollah after air strike
Car bomb kills four in Hezbollah Beirut bastion: minister

1

Do the following sentences say the same thing?
A dog is barking at a ball.
A dog swims after a tennis ball.

2

Do the following sentences say the same thing?
Benchmark Treasury 10-year notes gained 17/32, yielding 4.015 percent.
The benchmark 10-year note was recently down 17/32, to yield 4.067 percent.
3