*SUPPORT*
IN: dax tufa kiki tufa wif OUT: GREEN RED YELLOW
IN: dax OUT: GREEN
IN: wif fep dax OUT: GREEN YELLOW
IN: kiki kiki fep kiki OUT: RED RED RED
IN: wif gazzer tufa dax OUT: YELLOW YELLOW YELLOW YELLOW YELLOW GREEN
IN: kiki wif tufa lug tufa lug OUT: RED YELLOW PURPLE PURPLE
IN: kiki fep lug OUT: PURPLE RED
IN: dax lug OUT: GREEN PURPLE
IN: kiki lug fep kiki tufa wif OUT: RED RED PURPLE YELLOW
IN: kiki fep wif OUT: YELLOW RED
IN: wif OUT: YELLOW
IN: kiki kiki tufa kiki OUT: RED RED RED
IN: wif fep kiki tufa kiki OUT: RED YELLOW RED
IN: lug wif fep kiki fep kiki tufa wif OUT: RED RED PURPLE YELLOW YELLOW

*QUERY*
IN: dax wif tufa kiki tufa lug OUT: GREEN YELLOW RED PURPLE
IN: lug lug wif fep wif tufa wif OUT: YELLOW PURPLE PURPLE YELLOW YELLOW
IN: dax fep dax fep dax OUT: GREEN GREEN GREEN
IN: kiki tufa wif OUT: RED YELLOW
IN: kiki fep dax fep dax OUT: GREEN GREEN RED
IN: lug OUT: PURPLE
IN: kiki OUT: RED
IN: lug gazzer OUT: PURPLE PURPLE PURPLE PURPLE PURPLE
IN: kiki wif kiki kiki tufa dax OUT: RED YELLOW RED RED GREEN
IN: dax gazzer OUT: GREEN GREEN GREEN GREEN GREEN

*GRAMMAR*
kiki -> RED 
 lug -> PURPLE 
 wif -> YELLOW 
 dax -> GREEN 
 x1 gazzer -> [x1] [x1] [x1] [x1] [x1] 
 x1 tufa u1 -> [x1] [u1] 
 x1 fep u1 -> [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 