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

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

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