*SUPPORT*
IN: zup fep gazzer lug OUT: YELLOW BLUE BLUE BLUE
IN: wif fep zup wif dax OUT: GREEN YELLOW GREEN GREEN
IN: tufa OUT: PURPLE
IN: gazzer zup lug OUT: BLUE YELLOW YELLOW YELLOW
IN: zup dax OUT: YELLOW YELLOW
IN: wif tufa lug OUT: GREEN PURPLE PURPLE PURPLE
IN: gazzer dax OUT: BLUE BLUE
IN: gazzer OUT: BLUE
IN: zup OUT: YELLOW
IN: wif OUT: GREEN
IN: zup tufa fep zup zup fep tufa lug OUT: YELLOW PURPLE YELLOW YELLOW PURPLE PURPLE PURPLE
IN: gazzer tufa lug OUT: BLUE PURPLE PURPLE PURPLE
IN: gazzer tufa tufa lug OUT: BLUE PURPLE PURPLE PURPLE PURPLE
IN: zup fep gazzer dax OUT: YELLOW BLUE BLUE

*QUERY*
IN: gazzer fep tufa lug OUT: BLUE PURPLE PURPLE PURPLE
IN: tufa tufa OUT: PURPLE PURPLE
IN: wif lug OUT: GREEN GREEN GREEN
IN: gazzer fep tufa fep gazzer OUT: BLUE PURPLE BLUE
IN: gazzer lug OUT: BLUE BLUE BLUE
IN: wif wif dax OUT: GREEN GREEN GREEN
IN: zup lug OUT: YELLOW YELLOW YELLOW
IN: gazzer gazzer OUT: BLUE BLUE
IN: tufa lug OUT: PURPLE PURPLE PURPLE
IN: wif dax OUT: GREEN GREEN

*GRAMMAR*
tufa -> PURPLE 
 gazzer -> BLUE 
 zup -> YELLOW 
 wif -> GREEN 
 u1 dax -> [u1] [u1] 
 u1 lug -> [u1] [u1] [u1] 
 u1 fep x1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 