*SUPPORT*
IN: tufa zup wif OUT: PINK YELLOW YELLOW
IN: kiki kiki dax kiki OUT: GREEN GREEN GREEN GREEN
IN: wif dax kiki OUT: GREEN GREEN YELLOW
IN: tufa dax fep OUT: BLUE BLUE PINK
IN: fep fep OUT: BLUE BLUE
IN: kiki fep kiki zup fep OUT: GREEN BLUE GREEN BLUE BLUE
IN: kiki dax tufa OUT: PINK PINK GREEN
IN: tufa dax wif OUT: YELLOW YELLOW PINK
IN: tufa dax tufa OUT: PINK PINK PINK
IN: fep OUT: BLUE
IN: kiki dax wif OUT: YELLOW YELLOW GREEN
IN: wif zup kiki fep OUT: YELLOW GREEN BLUE GREEN BLUE
IN: tufa dax kiki OUT: GREEN GREEN PINK
IN: fep dax fep OUT: BLUE BLUE BLUE

*QUERY*
IN: kiki dax kiki OUT: GREEN GREEN GREEN
IN: wif kiki dax kiki OUT: YELLOW GREEN GREEN GREEN
IN: wif OUT: YELLOW
IN: fep dax kiki OUT: GREEN GREEN BLUE
IN: kiki OUT: GREEN
IN: tufa OUT: PINK
IN: wif kiki kiki zup fep OUT: YELLOW GREEN GREEN BLUE BLUE
IN: kiki kiki OUT: GREEN GREEN
IN: fep dax tufa lug tufa OUT: PINK PINK BLUE PINK
IN: wif dax tufa OUT: PINK PINK YELLOW

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