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

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

*GRAMMAR*
wif -> BLUE 
 fep -> RED 
 kiki -> PURPLE 
 zup -> GREEN 
 x1 tufa x2 -> [x2] [x1] 
 x1 gazzer u1 -> [x1] [u1] [x1] [x1] 
 u1 blicket u2 -> [u2] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 