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

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

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