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

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

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