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

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

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