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

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

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