*SUPPORT*
IN: dax wif dax OUT: GREEN GREEN
IN: tufa tufa wif gazzer zup dax OUT: GREEN YELLOW YELLOW PURPLE GREEN
IN: dax OUT: GREEN
IN: dax dax gazzer OUT: GREEN GREEN PURPLE
IN: dax kiki gazzer kiki tufa OUT: GREEN PURPLE YELLOW
IN: gazzer kiki blicket OUT: PURPLE RED
IN: blicket tufa wif blicket kiki tufa OUT: RED YELLOW RED YELLOW
IN: blicket gazzer wif tufa OUT: RED PURPLE YELLOW
IN: tufa zup blicket OUT: RED YELLOW RED
IN: blicket OUT: RED
IN: gazzer wif gazzer kiki tufa OUT: PURPLE PURPLE YELLOW
IN: gazzer wif tufa OUT: PURPLE YELLOW
IN: tufa wif blicket OUT: YELLOW RED
IN: tufa OUT: YELLOW

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

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