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

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

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