*SUPPORT*
IN: lug lug OUT: YELLOW YELLOW
IN: wif zup dax OUT: GREEN RED RED
IN: wif gazzer lug blicket tufa zup wif OUT: RED YELLOW RED PURPLE PURPLE
IN: dax gazzer tufa OUT: GREEN PURPLE
IN: tufa zup dax OUT: GREEN PURPLE PURPLE
IN: lug wif OUT: YELLOW RED
IN: wif gazzer wif zup wif blicket tufa lug OUT: RED RED RED RED PURPLE YELLOW
IN: tufa OUT: PURPLE
IN: lug zup wif blicket dax zup tufa OUT: RED YELLOW YELLOW PURPLE GREEN GREEN
IN: lug OUT: YELLOW
IN: dax OUT: GREEN
IN: dax wif OUT: GREEN RED
IN: tufa tufa wif OUT: PURPLE PURPLE RED
IN: wif dax dax zup wif OUT: RED GREEN RED GREEN GREEN

*QUERY*
IN: lug gazzer wif zup dax OUT: YELLOW GREEN RED RED
IN: wif zup tufa blicket tufa zup lug OUT: PURPLE RED RED YELLOW PURPLE PURPLE
IN: wif OUT: RED
IN: tufa zup tufa OUT: PURPLE PURPLE PURPLE
IN: wif dax zup dax OUT: RED GREEN GREEN GREEN
IN: dax zup wif OUT: RED GREEN GREEN
IN: dax zup dax blicket tufa zup dax OUT: GREEN GREEN GREEN GREEN PURPLE PURPLE
IN: lug wif tufa OUT: YELLOW RED PURPLE
IN: dax dax zup wif blicket lug OUT: GREEN RED GREEN GREEN YELLOW
IN: lug zup dax OUT: GREEN YELLOW YELLOW

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