Parables are usually told as short stories to explain or to illustrate a principle or a situation. It is to highlight one point and the rest of them are fillers. So, we cannot study them word by word, or sentence by sentence, but take only the main concept.  They are not documentary or reports of facts. Jesus Christ told many Parables. Since it is an explanation or an example, but not a definite statement, listeners or teachers can give their own interpretations, and so, there may be a few different teaching. However, most preachers and teachers will hold on to their church teaching and so, there may be uniformity. Since I do not just follow any church teaching, you may find it different. You may like them. Thank you. God bless you.