A string orchestra , to be known as the Countess of Wessex 's String Orchestra , will be based in Woolwich .
A string orchestra , to be known as the Countess of Wessex 's String Orchestra , will be manned with 24 personnel .
A string orchestra , to be known as the Countess of Wessex 's String Orchestra , will be based in Woolwich and manned with 24 personnel .