Problem: Wwo sentences:
ATA shares were down $ 1.85 at $ 8.07 on the Nasdaq Stock Market in Tuesday afternoon trading .
ATA shares closed down $ 1.66 , or 16.7 percent , at $ 8.26 on the Nasdaq Stock Market .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
Federal officials gave the DPS officer an FAA number to call to initiate lost-aircraft procedures .
Federal officials then gave the Texas DPS officer a number to call at the FAA to initiate lost aircraft procedures .
Do they have the same meaning?

Answer: yes

Problem: Wwo sentences:
Fatalities in rollover crashes accounted for 82 percent of the increase in 2002 , NHTSA said .
Alcohol-related fatalities accounted for 41 percent of the total number of deaths .
Do they have the same meaning?

Answer: no

Problem: Wwo sentences:
US authorities blame Al Qaeda for the attacks , which killed 231 people , including 12 Americans .
U.S. authorities blame Osama bin Laden 's al-Qaida network for the attacks , which killed 231 people , including 12 Americans .
Do they have the same meaning?

Answer:
yes