*SUPPORT*
IN: tufa blicket OUT: YELLOW YELLOW
IN: lug wif dax OUT: PURPLE BLUE
IN: dax wif lug OUT: BLUE PURPLE
IN: tufa tufa blicket zup lug wif gazzer OUT: YELLOW YELLOW YELLOW YELLOW RED BLUE RED BLUE
IN: lug tufa OUT: BLUE YELLOW
IN: dax wif gazzer OUT: RED PURPLE
IN: lug wif lug OUT: BLUE BLUE
IN: dax blicket zup dax zup tufa OUT: PURPLE PURPLE PURPLE PURPLE YELLOW YELLOW
IN: tufa wif lug OUT: BLUE YELLOW
IN: gazzer OUT: RED
IN: lug tufa wif lug OUT: BLUE BLUE YELLOW
IN: lug gazzer lug OUT: BLUE RED BLUE
IN: dax OUT: PURPLE
IN: gazzer dax blicket OUT: RED PURPLE RED PURPLE

*QUERY*
IN: dax tufa OUT: PURPLE YELLOW
IN: tufa wif tufa OUT: YELLOW YELLOW
IN: lug lug OUT: BLUE BLUE
IN: dax wif tufa OUT: YELLOW PURPLE
IN: dax wif gazzer blicket blicket OUT: RED PURPLE RED PURPLE RED PURPLE RED PURPLE
IN: gazzer wif tufa OUT: YELLOW RED
IN: lug OUT: BLUE
IN: dax dax OUT: PURPLE PURPLE
IN: tufa OUT: YELLOW
IN: tufa wif gazzer OUT: RED YELLOW

*GRAMMAR*
dax -> PURPLE 
 lug -> BLUE 
 gazzer -> RED 
 tufa -> YELLOW 
 x1 blicket -> [x1] [x1] 
 u1 wif u2 -> [u2] [u1] 
 x1 zup x2 -> [x1] [x2] [x2] 
 u1 x1 -> [u1] [x1] 
 