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

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

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