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

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

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