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

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

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