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

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

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