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

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

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