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

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

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