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

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

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