a portrait of Vincent van Gogh
... that Australian artist John Peter Russell painted a portrait of Vincent van Gogh and gave it to him as a mark of their friendship?
... that Australian artist <a class="mw-redirect" href="./John_Peter_Russell" id="mwA_I" rel="mw:WikiLink" title="John Peter Russell">John Peter Russell</a> painted <b id="mwA_M"><a href="./Vincent_van_Gogh_(Russell_painting)" id="mwA_Q" rel="mw:WikiLink" title="Vincent van Gogh (Russell painting)">a portrait of Vincent van Gogh</a></b> and gave it to him as a mark of their friendship?