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

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

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