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

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

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