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

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

*GRAMMAR*
fep -> PINK 
 tufa -> RED 
 zup -> GREEN 
 wif -> YELLOW 
 u1 dax u2 -> [u1] [u2] [u1] [u1] 
 u1 kiki x1 -> [x1] [u1] 
 x1 gazzer x2 -> [x2] [x1] 
 u1 x1 -> [u1] [x1] 
 