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

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

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