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

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

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