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

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

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