*SUPPORT*
IN: wif dax kiki OUT: PURPLE RED
IN: gazzer gazzer dax gazzer OUT: YELLOW YELLOW YELLOW
IN: tufa zup kiki OUT: RED BLUE
IN: gazzer fep kiki OUT: RED RED YELLOW YELLOW
IN: kiki OUT: RED
IN: kiki dax gazzer OUT: RED YELLOW
IN: wif zup gazzer OUT: YELLOW PURPLE
IN: kiki gazzer fep wif OUT: RED PURPLE PURPLE YELLOW YELLOW
IN: tufa OUT: BLUE
IN: kiki zup wif OUT: PURPLE RED
IN: wif dax wif OUT: PURPLE PURPLE
IN: kiki fep wif OUT: PURPLE PURPLE RED RED
IN: gazzer dax gazzer OUT: YELLOW YELLOW
IN: gazzer wif zup gazzer OUT: YELLOW YELLOW PURPLE

*QUERY*
IN: tufa wif zup gazzer OUT: BLUE YELLOW PURPLE
IN: kiki dax wif OUT: RED PURPLE
IN: tufa kiki dax wif OUT: BLUE RED PURPLE
IN: tufa fep tufa OUT: BLUE BLUE BLUE BLUE
IN: wif dax gazzer OUT: PURPLE YELLOW
IN: gazzer zup kiki OUT: RED YELLOW
IN: kiki wif zup tufa OUT: RED BLUE PURPLE
IN: gazzer dax kiki OUT: YELLOW RED
IN: wif wif zup wif OUT: PURPLE PURPLE PURPLE
IN: gazzer zup gazzer OUT: YELLOW YELLOW

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