Sentence:  For the marksman , we study sets of five shots ( * * f ) ; for the <WSD>mice</WSD> , we restrict attention to litters of eight ( * * f ) ; and for the aces , we toss three dice ( * * f ) . 
Meaning of the word marked with <WSD> tags:  any of numerous small rodents typically resembling diminutive rats having pointed snouts and small ears on elongated bodies with slender usually hairless tails