31.   But the software engineers had to design a number of assistants because it turned out that different people felt comfortable with different characters.

32.   By the time Endeavour has landed, shuttle engineers may have a preliminary assessment of how well the repaired nozzle joints in the two booster rockets survived the launching.

33.   Engineers have also stuffed telephone-answering machines into some all-in-ones.

34.   Engineers are having trouble making good use of the millions of transistors available to them.

35.   Engineers have to go back to the drawing board to determine how best to reinforce structures, road and bridges to survive possibly more powerful quakes.

36.   Engineers had to install the equipment.

37.   Engineers would then have to prove that such fiber could be manufactured cheaply and integrated into existing networks.

38.   Exactly where or why, engineers have yet to determine.

39.   Engineers have a new potential calamity against which to design.

40.   Engineers have experience over time.