*SUPPORT*
IN: fep OUT: BLUE
IN: wif dax wif OUT: YELLOW YELLOW YELLOW
IN: lug dax zup wif OUT: GREEN PURPLE YELLOW GREEN
IN: fep zup OUT: BLUE PURPLE
IN: lug gazzer blicket fep OUT: BLUE GREEN GREEN GREEN GREEN GREEN GREEN
IN: zup dax zup OUT: PURPLE PURPLE PURPLE
IN: fep lug blicket fep OUT: BLUE BLUE GREEN BLUE GREEN
IN: lug OUT: GREEN
IN: lug gazzer OUT: GREEN GREEN GREEN
IN: fep fep OUT: BLUE BLUE
IN: zup gazzer OUT: PURPLE PURPLE PURPLE
IN: zup zup fep gazzer OUT: PURPLE PURPLE BLUE BLUE BLUE
IN: zup OUT: PURPLE
IN: wif gazzer OUT: YELLOW YELLOW YELLOW

*QUERY*
IN: wif OUT: YELLOW
IN: wif dax zup OUT: YELLOW PURPLE YELLOW
IN: wif lug gazzer OUT: YELLOW GREEN GREEN GREEN
IN: fep dax wif OUT: BLUE YELLOW BLUE
IN: lug dax wif gazzer OUT: GREEN YELLOW YELLOW YELLOW GREEN
IN: lug wif gazzer OUT: GREEN YELLOW YELLOW YELLOW
IN: lug dax lug OUT: GREEN GREEN GREEN
IN: fep gazzer OUT: BLUE BLUE BLUE
IN: lug dax zup OUT: GREEN PURPLE GREEN
IN: wif wif OUT: YELLOW YELLOW

*GRAMMAR*
fep -> BLUE 
 wif -> YELLOW 
 zup -> PURPLE 
 lug -> GREEN 
 x1 blicket u1 -> [u1] [x1] [x1] 
 u1 gazzer -> [u1] [u1] [u1] 
 u1 dax x1 -> [u1] [x1] [u1] 
 u1 x1 -> [u1] [x1] 
 