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

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

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