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

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

*GRAMMAR*
lug -> GREEN 
 dax -> PINK 
 wif -> YELLOW 
 gazzer -> BLUE 
 u1 fep u2 -> [u1] [u2] 
 u1 kiki -> [u1] [u1] 
 x1 tufa x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 