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

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

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