nw["information"="board"]["board_type"~"wildlife|plants|geology|nature|planet_walk|astronomy|forestry|botany|biology|birds|tree|panorama|agriculture|science|technology"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
nw["information"="nature"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
nw["information"="wild_life"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
nw["information"="wildlife"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
relation["type"="route"]["educational"="yes"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
relation["route"="educational_trail"]["access"!~"^(private|no|customers|customer|permit)$"]["fee"!="yes"];
overpass-turbo