300,000+20,000+5,000+800+00+9
An argument which is well constructed is caught in a valid argument
Answer: bundle of contradictions
In Anne Frank's last entry, she calls herself a "bundle of contradictions" because she is mindful enough to discover there are two sides of her, the lighter side and the thoughtful side. Part of her loves how cheerful and bubbly she can be, but the other part fears that, because of that, she won't be taken seriously by other people.
I don't know if you are looking for a spicific type of poem, though a group of lines is called a stanza.