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

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

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