It 's slow process but after the process they can use Yerkish signs and start to understand what people , trainers , researchers are saying .
It 's a slow process , but after the process they can use Yerkish signs and start to understand what people , trainers , and researchers are saying . It 's a slow process but afterwards they can use Yerkish signs and start to understand what people , trainers , and researchers are saying . It 's a slow process , but afterwards they can use Yerkish signs and start to understand what people , trainers , and researchers are saying . It 's a slow process , but after the process they can use Yerkish symbols and start to understand what people , trainers , and researchers are saying .