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

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

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