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

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

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