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

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

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