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

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

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