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

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

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