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

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

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