How to say you have only to read this article to see how serious the accident was. in Japanese
1)
そのその(sono) (n,n-suf) that/garden/orchard/park/plantation/place/location事故事故(jiko) (ok) accident/incident/trouble/circumstances/reasonsが(prt) indicates sentence subject/indicates possessive/but/however/still/andどんな(adj-pn) what/what kind of/anyにに(ni) (prt) indicates such things as location of person or thing, location of short-term action, etc.重大重大(juudai) (adj-na,n) serious/important/significant/grave/weightyであったno dictionary result, likely a conjigated verbか(prt) indicates question/indicates choice, doubt, etc.はは(ha) (int) indicating a subject/yes/indeed/well/ha!/what?/huh?/sigh、、(、) Japanese commaこのこの(kono) (n) this記事記事(kiji) (n) article/news story/report/accountをを(wo) (prt) indicates direct object of action/indicates subject of causative expression/indicates an area traversed/indicates time over which action takes place/indicates point of departure or separation of action/indicates object of desire, like, hate,読み読み(yomi) (n) readingさえすればよno dictionary result, likely a conjigated verbno dictionary result, likely a conjigated verbいい(i) (prt) strengthens a question, assertion, etc.。。(。) Japanese period "."
