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

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

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