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

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

*GRAMMAR*
lug -> RED 
 kiki -> PURPLE 
 tufa -> GREEN 
 wif -> BLUE 
 u1 zup u2 -> [u1] [u2] 
 x1 fep x2 -> [x2] [x1] 
 u1 gazzer -> [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 