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

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

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