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

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

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