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

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

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