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

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

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