51.  The tricky part is aiming the shots in a way that will knock him down without killing him.

52.  The tricky part is judging which countries qualify and, over time, measuring whether they are making good use of their aid.

53.  The tricky part with round one of the NHL playoffs, especially at the Staples Center, is the NBA regular season is still going on.

54.  The tricky part, for designators of natural treasures, is establishing at what point nature has sufficiently reclaimed them.

55.  There are ordinary cookies here and if something is complicated, you can always stop before the tricky parts set in.

56.  Then came the tricky part.

57.  This is a very tricky part.

58.  This is the tricky part of this billion-dollar business.

59.  This is the tricky part, Ghai said.

60.  This is the tricky part.