*SUPPORT*
IN: dax lug blicket kiki zup kiki lug kiki OUT: PINK YELLOW PINK PINK PINK GREEN
IN: kiki zup kiki OUT: PINK PINK PINK
IN: wif zup kiki OUT: PINK RED PINK
IN: blicket zup kiki OUT: PINK YELLOW PINK
IN: dax dax dax zup blicket OUT: GREEN GREEN YELLOW GREEN YELLOW
IN: blicket zup kiki lug wif OUT: RED PINK YELLOW PINK
IN: kiki OUT: PINK
IN: dax lug kiki lug wif OUT: RED PINK GREEN
IN: kiki lug kiki tufa OUT: PINK PINK PINK PINK
IN: blicket tufa OUT: YELLOW YELLOW YELLOW
IN: blicket kiki zup dax OUT: YELLOW GREEN PINK GREEN
IN: wif zup wif OUT: RED RED RED
IN: wif wif zup dax OUT: RED GREEN RED GREEN
IN: kiki kiki lug dax lug dax OUT: GREEN GREEN PINK PINK

*QUERY*
IN: dax kiki zup kiki lug blicket OUT: YELLOW GREEN PINK PINK PINK
IN: dax zup dax OUT: GREEN GREEN GREEN
IN: dax zup kiki OUT: PINK GREEN PINK
IN: kiki zup dax OUT: GREEN PINK GREEN
IN: wif lug blicket OUT: YELLOW RED
IN: wif OUT: RED
IN: wif wif lug dax OUT: GREEN RED RED
IN: dax zup dax lug wif OUT: RED GREEN GREEN GREEN
IN: blicket blicket zup dax OUT: YELLOW GREEN YELLOW GREEN
IN: dax OUT: GREEN

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