*SUPPORT*
IN: fep dax OUT: GREEN GREEN
IN: wif blicket wif OUT: RED RED
IN: fep kiki OUT: GREEN GREEN GREEN GREEN
IN: wif lug wif OUT: RED PINK RED
IN: fep blicket zup OUT: GREEN BLUE
IN: wif OUT: RED
IN: fep lug fep lug wif kiki OUT: GREEN PINK GREEN PINK RED RED RED RED
IN: fep zup wif wif OUT: GREEN BLUE RED RED
IN: fep zup dax OUT: GREEN BLUE BLUE
IN: fep OUT: GREEN
IN: wif dax OUT: RED RED
IN: wif lug OUT: RED PINK
IN: zup wif OUT: BLUE RED
IN: wif blicket zup OUT: RED BLUE

*QUERY*
IN: fep blicket fep OUT: GREEN GREEN
IN: zup kiki OUT: BLUE BLUE BLUE BLUE
IN: zup blicket lug OUT: BLUE PINK
IN: lug zup kiki OUT: PINK BLUE BLUE BLUE BLUE
IN: wif kiki OUT: RED RED RED RED
IN: zup lug lug dax OUT: BLUE PINK PINK PINK
IN: lug blicket wif OUT: PINK RED
IN: lug dax OUT: PINK PINK
IN: zup dax OUT: BLUE BLUE
IN: lug OUT: PINK

*GRAMMAR*
lug -> PINK 
 zup -> BLUE 
 wif -> RED 
 fep -> GREEN 
 u1 blicket u2 -> [u1] [u2] 
 u1 dax -> [u1] [u1] 
 u1 kiki -> [u1] [u1] [u1] [u1] 
 u1 x1 -> [u1] [x1] 
 