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

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

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