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

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

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