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

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

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