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

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

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