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

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

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