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

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

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