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

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

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