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

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

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