21.   In fact, they say, the perpetrator is more likely to be someone known to the victim.

22.   It was not immediately known if he was a Parks Service employee.

23.   Kinases are enzymes known to be important for signaling, he said.

24.   Knowing when to be generous.

25.   Less well known is a bigger program open to all special-education students.

26.   Less well known is a shuttered gambling hall in the far northwest corner of Washington state, run by the Lummi Indian Nation.

27.   Less well known is that a similar outcome is possible in the House.

28.   Less well known is that many prisons also find a place for painting and sculpture.

29.   Less well known is the fact that he also had a movie camera.