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

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

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