text: import React from "react";
  import { graphql } from "gatsby";
  import Layout from "../layouts/layout";
  
  export const pageQuery = graphql`
    query NotFoundQuery {
      site {
        siteMetadata {
          title
          author
        }
      }
    }
  `;
  
  const NotFoundPage = props => {
    const { title, author } = props.data.site.siteMetadata;
  
    return (
      <Layout title={title} author={author}>
        <div>
          <h1>NOT FOUND</h1>
          <p>このページは見つかりませんでした。</p>
        </div>
      </Layout>
    );
  };
  
  export default NotFoundPage;
  