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

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

*GRAMMAR*
dax -> PURPLE 
 zup -> YELLOW 
 wif -> RED 
 gazzer -> GREEN 
 u1 fep -> [u1] [u1] 
 x1 kiki x2 -> [x1] [x2] 
 u1 tufa x1 -> [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 