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

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

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