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

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

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