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

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

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