If you already have the validate tool installed elsewhere, update the below path to it.
npm install --save shex
./node_modules/shex/bin/validate -d interaction.ttl -x interaction.shex -n http://rdf.wikipathways.org/Pathway/WP4806_r110852/WP/Interaction/ae20c
./node_modules/shex/bin/validate -d interaction.ttl -x directed.shex -n http://rdf.wikipathways.org/Pathway/WP4806_r110852/WP/Interaction/ae20c