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

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

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