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

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

*GRAMMAR*
zup -> BLUE 
 gazzer -> PURPLE 
 lug -> YELLOW 
 fep -> GREEN 
 u1 wif u2 -> [u2] [u1] [u1] 
 u1 kiki -> [u1] [u1] 
 u1 dax -> [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 