Sentence:  The commands are specified by the military regulations ; are <WSD>few</WSD> in number , briefly worded , all different in sound ; and are combinable into sequences which permit any marching maneuver that could be desired on a parade ground . 
Meaning of the word marked with <WSD> tags:  a quantifier that can be used with count nouns and is often preceded by `a'; a small but indefinite number