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

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

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