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

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

*GRAMMAR*
lug -> BLUE 
 tufa -> RED 
 wif -> PINK 
 fep -> GREEN 
 u1 gazzer x1 -> [u1] [x1] 
 x1 blicket x2 -> [x1] [x2] 
 x1 kiki x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 