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

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

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