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

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

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