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

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

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