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

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

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