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

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

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