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

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

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