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

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

*GRAMMAR*
wif -> PINK 
 fep -> RED 
 lug -> GREEN 
 tufa -> BLUE 
 u1 zup u2 -> [u2] [u2] [u1] [u1] 
 x1 kiki x2 -> [x2] [x1] [x2] 
 x1 dax -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 