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

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

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