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

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

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