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

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

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