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

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

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