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

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

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