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

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

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