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

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

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