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

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

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