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

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

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