*SUPPORT*
IN: wif tufa zup kiki OUT: GREEN PURPLE RED
IN: tufa fep zup wif OUT: RED GREEN YELLOW
IN: tufa zup kiki OUT: PURPLE RED
IN: fep OUT: YELLOW
IN: kiki fep zup wif OUT: PURPLE GREEN YELLOW
IN: kiki OUT: PURPLE
IN: fep fep zup tufa OUT: YELLOW RED YELLOW
IN: kiki kiki gazzer fep OUT: PURPLE PURPLE YELLOW PURPLE PURPLE YELLOW YELLOW
IN: wif fep tufa kiki kiki OUT: GREEN YELLOW RED PURPLE PURPLE
IN: wif gazzer tufa OUT: GREEN RED GREEN GREEN RED RED
IN: wif zup fep OUT: YELLOW GREEN
IN: tufa wif zup tufa OUT: RED RED GREEN
IN: fep fep dax tufa OUT: YELLOW YELLOW RED
IN: kiki zup kiki OUT: PURPLE PURPLE

*QUERY*
IN: tufa zup tufa OUT: RED RED
IN: kiki dax wif OUT: PURPLE GREEN
IN: wif wif OUT: GREEN GREEN
IN: tufa OUT: RED
IN: tufa dax wif OUT: RED GREEN
IN: tufa wif tufa dax kiki OUT: RED GREEN RED PURPLE
IN: fep tufa OUT: YELLOW RED
IN: tufa zup wif OUT: GREEN RED
IN: fep wif gazzer fep OUT: YELLOW GREEN YELLOW GREEN GREEN YELLOW YELLOW
IN: kiki zup fep OUT: YELLOW PURPLE

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