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

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

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