*SUPPORT*
IN: lug OUT: YELLOW
IN: fep lug tufa OUT: BLUE YELLOW YELLOW
IN: fep OUT: BLUE
IN: wif fep tufa OUT: GREEN BLUE BLUE
IN: fep lug OUT: BLUE YELLOW
IN: lug wif gazzer kiki OUT: YELLOW PINK GREEN
IN: kiki tufa OUT: PINK PINK
IN: lug dax fep OUT: BLUE BLUE YELLOW
IN: lug dax kiki kiki gazzer fep OUT: PINK BLUE PINK PINK BLUE PINK YELLOW
IN: kiki gazzer wif OUT: GREEN PINK
IN: lug dax kiki wif wif OUT: PINK GREEN GREEN PINK GREEN GREEN YELLOW
IN: lug dax wif tufa OUT: GREEN GREEN GREEN GREEN YELLOW
IN: fep gazzer wif OUT: GREEN BLUE
IN: wif OUT: GREEN

*QUERY*
IN: kiki OUT: PINK
IN: fep dax lug kiki gazzer wif OUT: YELLOW GREEN PINK YELLOW GREEN PINK BLUE
IN: wif tufa OUT: GREEN GREEN
IN: fep tufa OUT: BLUE BLUE
IN: fep dax lug tufa OUT: YELLOW YELLOW YELLOW YELLOW BLUE
IN: lug tufa OUT: YELLOW YELLOW
IN: kiki lug OUT: PINK YELLOW
IN: lug dax lug OUT: YELLOW YELLOW YELLOW
IN: lug gazzer wif OUT: GREEN YELLOW
IN: wif kiki kiki gazzer fep OUT: GREEN PINK BLUE PINK

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