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

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

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