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

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

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