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

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

*GRAMMAR*
tufa -> RED 
 fep -> PURPLE 
 dax -> GREEN 
 wif -> BLUE 
 u1 kiki u2 -> [u2] [u1] 
 u1 blicket -> [u1] [u1] [u1] [u1] [u1] 
 x1 gazzer x2 -> [x2] [x1] [x2] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 