*SUPPORT*
IN: fep wif OUT: BLUE BLUE
IN: lug fep gazzer OUT: GREEN BLUE GREEN BLUE
IN: lug fep lug OUT: GREEN BLUE GREEN
IN: tufa fep wif gazzer OUT: RED BLUE BLUE RED BLUE BLUE
IN: kiki kiki kiki fep wif OUT: PURPLE PURPLE PURPLE BLUE BLUE
IN: kiki zup tufa OUT: PURPLE RED
IN: kiki zup tufa gazzer OUT: PURPLE RED PURPLE RED
IN: tufa OUT: RED
IN: lug zup lug gazzer OUT: GREEN GREEN GREEN GREEN
IN: kiki zup lug OUT: PURPLE GREEN
IN: kiki OUT: PURPLE
IN: kiki wif OUT: PURPLE PURPLE
IN: tufa wif OUT: RED RED
IN: lug wif gazzer OUT: GREEN GREEN GREEN GREEN

*QUERY*
IN: lug zup tufa OUT: GREEN RED
IN: fep OUT: BLUE
IN: lug kiki OUT: GREEN PURPLE
IN: fep kiki gazzer gazzer OUT: BLUE PURPLE BLUE PURPLE BLUE PURPLE BLUE PURPLE
IN: kiki gazzer OUT: PURPLE PURPLE
IN: lug OUT: GREEN
IN: lug fep wif OUT: GREEN BLUE BLUE
IN: fep fep kiki wif gazzer OUT: BLUE BLUE PURPLE PURPLE BLUE BLUE PURPLE PURPLE
IN: lug zup fep gazzer OUT: GREEN BLUE GREEN BLUE
IN: lug wif OUT: GREEN GREEN

*GRAMMAR*
kiki -> PURPLE 
 lug -> GREEN 
 fep -> BLUE 
 tufa -> RED 
 u1 zup u2 -> [u1] [u2] 
 u1 wif -> [u1] [u1] 
 x1 gazzer -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 