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

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

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