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

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

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