Sentence:  To assist the States , therefore , in rehabilitating handicapped individuals , `` so that they may prepare for and engage in remunerative employment to the <WSD>extent</WSD> of their capabilities '' , the 83 rd Congress enacted the Vocational Rehabilitation Amendments of 1954 ( P. L. 565 ) . 
Meaning of the word marked with <WSD> tags:  the point or degree to which something extends