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

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

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