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

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

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