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

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

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