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

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

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