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

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

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