international atomic energy association is the united nations watchdog.
the international atomic energy agency is the u.n.'s nuclear watchdog.

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 5

Security official killed in Yemen
Security personnel killed in Pakistan raid

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 1

Security lights have also been installed and police have swept the grounds for booby traps.
Security lights have also been installed on a barn near the front gate.

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer: 3

At least 11 killed in India building collapse
At Least 66 Killed in Bomb Blasts in Iraq

Rate the textual similarity of these two sentences on a scale from 0 to 5, where 0 is "no meaning overlap" and 5 is "means the same thing".

Answer:
1