*SUPPORT*
IN: gazzer fep tufa zup lug OUT: RED GREEN BLUE
IN: gazzer fep wif OUT: RED PURPLE
IN: wif tufa zup lug blicket OUT: PURPLE GREEN BLUE PURPLE GREEN BLUE
IN: wif fep lug blicket OUT: PURPLE BLUE BLUE
IN: wif blicket OUT: PURPLE PURPLE
IN: gazzer blicket OUT: RED RED
IN: gazzer OUT: RED
IN: gazzer gazzer OUT: RED RED
IN: wif fep lug OUT: PURPLE BLUE
IN: lug fep lug OUT: BLUE BLUE
IN: lug tufa tufa OUT: BLUE GREEN GREEN
IN: tufa tufa blicket blicket OUT: GREEN GREEN GREEN GREEN GREEN GREEN GREEN GREEN
IN: lug fep tufa fep tufa blicket OUT: BLUE GREEN GREEN GREEN
IN: tufa OUT: GREEN

*QUERY*
IN: wif OUT: PURPLE
IN: wif fep tufa blicket blicket OUT: PURPLE GREEN GREEN GREEN GREEN
IN: wif tufa lug lug fep gazzer zup lug OUT: PURPLE GREEN BLUE BLUE RED BLUE
IN: lug OUT: BLUE
IN: tufa wif blicket zup lug lug OUT: GREEN PURPLE GREEN PURPLE BLUE BLUE
IN: wif gazzer OUT: PURPLE RED
IN: tufa fep wif fep wif fep tufa OUT: GREEN PURPLE PURPLE GREEN
IN: tufa fep gazzer blicket OUT: GREEN RED RED
IN: gazzer tufa OUT: RED GREEN
IN: tufa fep gazzer OUT: GREEN RED

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