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

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

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