*SUPPORT*
IN: dax tufa wif dax OUT: GREEN PURPLE GREEN
IN: dax wif tufa OUT: GREEN PURPLE
IN: lug wif blicket OUT: BLUE RED
IN: tufa zup OUT: PURPLE PURPLE
IN: lug zup OUT: BLUE BLUE
IN: dax wif lug kiki dax zup OUT: GREEN GREEN GREEN BLUE
IN: blicket zup OUT: RED RED
IN: dax blicket OUT: GREEN RED
IN: blicket OUT: RED
IN: lug OUT: BLUE
IN: dax zup OUT: GREEN GREEN
IN: tufa tufa lug blicket blicket wif lug OUT: PURPLE PURPLE BLUE RED RED BLUE
IN: lug tufa wif blicket OUT: BLUE PURPLE RED
IN: lug dax wif dax OUT: BLUE GREEN GREEN

*QUERY*
IN: dax lug blicket zup kiki lug zup OUT: BLUE BLUE GREEN BLUE RED RED
IN: dax kiki lug OUT: BLUE GREEN
IN: tufa wif lug OUT: PURPLE BLUE
IN: blicket blicket lug wif lug kiki dax OUT: GREEN RED RED BLUE BLUE
IN: dax OUT: GREEN
IN: tufa wif tufa OUT: PURPLE PURPLE
IN: tufa OUT: PURPLE
IN: lug wif tufa OUT: BLUE PURPLE
IN: lug wif dax OUT: BLUE GREEN
IN: blicket lug wif lug kiki blicket kiki dax OUT: GREEN RED RED BLUE BLUE

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