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

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

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