Are these sentences correct:<br/><br/><span style="color:#ff0000;">1-There are passengers in the airport to go to Paris.</span><br/><span style="color:#ff0000;">2-There are passengers to go to Paris.</span><br/><br/><span style="color:#ff0000;">3-There are passengers in the airport, to go to Paris.</span><br/><span style="color:#ff0000;">4-There are passengers, to go to Paris.</span><br/><br/><span style="color:#ff0000;"><span style="color:#000000;">In '3' and '4', 'to go to Paris' has been added as an afterthought.</span></span><br/><br/>Gratefully,<br/>Navi.