Drayna says the GNPTAB gene is present in all higher-order animals and contributes to humans' unique ability to communicate.

VOA: standard.2010.02.11

Opposition Republicans claim more than three million jobs have been lost since the bill's passage, and they say it contributes to the nation's soaring debt.

VOA: standard.2010.06.18

Mitchell says Fort Rucker contributes one billion dollars a year to the region.

VOA: standard.2010.08.10

Dalil says this contributes to a harsh statistic.

VOA: standard.2010.03.07

"The dollar weakness contributes to this;

VOA: standard.2009.12.17