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

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

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