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

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

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