1.   Advanced computer systems could trace the origin of every gun used in a violent crime.

2.   In raising such questions, the intention is to lay warnings about tracing the origins of voluntary collectivism in selected traditions.

3.   They are a very old family and trace their origins back right through the centuries.

4.   Although both companies trace their origins to the Internet, their cultures are very different.

5.   Australian newspapers, from where the global media group traces its origins, performed poorly compared with their British stablemates.

6.   A separate investigative panel was formed to trace its origins.

7.   Both banks, based in Salt Lake City, trace their origins to Brigham Young, the Mormon leader whose followers settled in Utah.

8.   But tracing the origin of the strain of anthrax that killed five people last fall has been a far murkier venture.

9.   But tracing the origin of the strain of anthrax that killed five last fall as been a far murkier venture.

10.   But when a Canadian folklorist tried to trace the origins of this meaning, he had a horrendous time.