So,do they serve a purpose in reducing physical pain?

VOA: special.2009.08.18

Every line has a purpose, and so is beautiful.

VOA: special.2009.05.10

Dancing in the streets of London. This is a two-step with a purpose.

VOA: standard.2010.03.10

A North Carolina lawyer named Phil Evans organized a group called the First Colony Foundation to raise money for this purpose.

VOA: special.2009.08.17

He leads a big church in California and has sold millions of copies of books about "The Purpose Driven Life."

VOA: special.2009.01.19

Lincoln himself said his purpose was to provide "an open field and a fair chance in life."

VOA: special.2009.02.09

Anti-slavery activist William Lloyd Garrison started a paper in eighteen thirty-one with the purpose of ending slavery.

VOA: special.2009.04.20

Historians say that by writing the Emancipation Proclamation, Lincoln established a moral purpose for the war.

VOA: special.2009.02.09

People felt that a year had been wasted, that thousands had died for no real purpose.

VOA: special.2009.09.24

Forty years earlier, a group of leading Americans had formed an organization for that purpose.

VOA: special.2009.04.16

This can be a problem even though earwax appears to serve an important purpose.

VOA: special.2010.03.31

We chose the name "American Mosaic" because the purpose of the show is to create a picture of life in the United States through many small stories.

VOA: special.2009.01.02

They also worked on a platform -- a statement of their party's purpose.

VOA: special.2009.03.12

Clowns have a real purpose: to make people laugh.

VOA: special.2009.01.11