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

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

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