*SUPPORT*
IN: wif OUT: BLUE
IN: wif kiki zup wif OUT: BLUE BLUE RED BLUE BLUE RED
IN: dax zup dax OUT: GREEN GREEN GREEN GREEN GREEN
IN: gazzer blicket OUT: PURPLE PURPLE PURPLE
IN: dax wif zup dax OUT: GREEN GREEN BLUE GREEN GREEN BLUE
IN: dax lug OUT: GREEN GREEN
IN: gazzer zup dax OUT: GREEN PURPLE GREEN GREEN PURPLE
IN: kiki gazzer dax lug OUT: RED PURPLE GREEN RED PURPLE GREEN
IN: gazzer gazzer blicket OUT: PURPLE PURPLE PURPLE PURPLE
IN: gazzer zup wif OUT: BLUE PURPLE BLUE BLUE PURPLE
IN: gazzer OUT: PURPLE
IN: dax zup kiki OUT: RED GREEN RED RED GREEN
IN: kiki zup dax OUT: GREEN RED GREEN GREEN RED
IN: wif kiki lug OUT: BLUE RED BLUE RED

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

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