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

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

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