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

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

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