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

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

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