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

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

*GRAMMAR*
kiki -> YELLOW 
 wif -> GREEN 
 dax -> RED 
 gazzer -> PURPLE 
 u1 lug x1 -> [x1] [u1] 
 u1 tufa x1 -> [u1] [x1] 
 u1 fep u2 -> [u2] [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 