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

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

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