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

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

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