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

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

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