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

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

*GRAMMAR*
wif -> BLUE 
 kiki -> PINK 
 fep -> RED 
 lug -> GREEN 
 u1 blicket u2 -> [u1] [u2] 
 x1 tufa x2 -> [x2] [x1] 
 x1 dax -> [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 