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

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

*GRAMMAR*
kiki -> BLUE 
 wif -> GREEN 
 gazzer -> RED 
 tufa -> PURPLE 
 x1 lug x2 -> [x1] [x2] [x2] 
 u1 fep u2 -> [u2] [u1] 
 u1 dax u2 -> [u2] [u1] 
 u1 x1 -> [u1] [x1] 
 