1.   At this point, the investigators were closer to the truth than they realized.

2.   For each of these components of primary education the investigator is concerned to improve the quality of initial training.

3.   Investigators are not sure what caused the plane to break into pieces and plunge into the ocean.

4.   Investigators are now at the scene, searching for clues.

5.   Investigators are uncertain why the plane failed to gain height after takeoff.

6.   Investigators are working day in, day out to determine the cause of the crash.

7.   Investigators were still on the scene late Saturday gathering evidence and testing the waters.

8.   The principal investigators will be responsible for interviewing key informants about the way the system has been modified in recent years.

9.   The research is being undertaken on an inter-disciplinary basis and the two principal investigators are an economist and a social policy specialist.