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

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

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