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

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

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