Sentence:  In a periodic review , the local board on July 30 , 1953 , reclassified him 1 , - A and upheld this <WSD>classification</WSD> after a personal appearance by petitioner , because of his willingness to kill in defense of his church and home . 
Meaning of the word marked with <WSD> tags:  the act of distributing things into classes or categories of the same type