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

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

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