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

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

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