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

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

*GRAMMAR*
gazzer -> GREEN 
 lug -> YELLOW 
 dax -> RED 
 fep -> BLUE 
 x1 kiki x2 -> [x2] [x1] [x1] 
 u1 wif u2 -> [u1] [u2] 
 u1 zup u2 -> [u2] [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 