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

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

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