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

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

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