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

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

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