<i>I became Vice Principal of an F.E. College, from which<b> post</b> I took early retirement some 10 years ago.</i><br/><br/>What does post mean here?<br/><br/>When are we able to follow 'which' with another noun? For example, this is correct:<br/><br/><i>I played soccer, during which<b> time</b> I...</i><br/><br/><i></i><br/><br/>But this may not be:<br/><br/><i></i><br/><br/><i>This is the college, in which <b>house</b> I lived for quite some time.</i><br/><br/>Thank you