*SUPPORT*
IN: wif lug zup kiki fep dax OUT: BLUE PINK RED YELLOW
IN: lug zup dax kiki kiki OUT: PINK YELLOW RED RED
IN: wif zup dax zup lug kiki fep wif OUT: BLUE YELLOW PINK RED BLUE
IN: dax zup wif OUT: YELLOW BLUE
IN: dax gazzer wif OUT: BLUE YELLOW
IN: lug zup dax lug OUT: PINK YELLOW PINK
IN: dax wif zup dax fep dax OUT: YELLOW BLUE YELLOW YELLOW
IN: lug zup wif wif fep lug OUT: PINK BLUE BLUE PINK
IN: dax OUT: YELLOW
IN: kiki OUT: RED
IN: dax gazzer wif kiki fep wif OUT: BLUE RED BLUE YELLOW
IN: lug OUT: PINK
IN: lug dax zup dax OUT: PINK YELLOW YELLOW
IN: dax zup lug zup wif OUT: YELLOW PINK BLUE

*QUERY*
IN: dax wif OUT: YELLOW BLUE
IN: kiki dax fep dax OUT: RED YELLOW YELLOW
IN: lug zup lug fep lug fep kiki OUT: PINK PINK PINK RED
IN: dax lug dax dax fep kiki OUT: YELLOW PINK YELLOW YELLOW RED
IN: dax gazzer kiki gazzer wif OUT: BLUE RED YELLOW
IN: lug fep lug OUT: PINK PINK
IN: dax wif zup kiki OUT: YELLOW BLUE RED
IN: wif fep wif OUT: BLUE BLUE
IN: dax dax OUT: YELLOW YELLOW
IN: wif OUT: BLUE

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