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

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

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