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

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

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