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

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

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