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

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

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