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

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

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