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

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

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