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

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

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