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

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

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