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

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

*GRAMMAR*
wif -> PURPLE 
 dax -> GREEN 
 tufa -> BLUE 
 fep -> YELLOW 
 u1 gazzer -> [u1] [u1] [u1] 
 x1 lug -> [x1] [x1] 
 x1 kiki x2 -> [x1] [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 