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

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

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