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

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

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