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

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

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