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

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

*GRAMMAR*
fep -> RED 
 wif -> PURPLE 
 dax -> YELLOW 
 kiki -> GREEN 
 u1 tufa -> [u1] [u1] 
 u1 gazzer u2 -> [u1] [u1] [u2] [u2] [u2] 
 x1 zup x2 -> [x1] [x2] 
 u1 x1 -> [u1] [x1] 
 