(self)
normalize short sufix
normalize short sufix
normalize short sufix
def suf1(self):
        """normalize short sufix"""
        for sf1 in self.s1:
            if self.stm.endswith(sf1):
                self.stm = self.stm[:-1]
                return self.stm
def suf1 ( self ) : for sf1 in self . s1 : if self . stm . endswith ( sf1 ) : self . stm = self . stm [ : - 1 ] return self . stm