Sentence:  Some poems, echoing the purpose of early poetic treatises on scientific principles, attempt to elucidate the mathematical concepts that underlie prime numbers. Others play with primes' cultural associations. Still others derive their structure from mathematical patterns <WSD>involving</WSD> primes. 
Meaning of the word marked with <WSD> tags:  To connect with something as a natural or logical consequence or effect; to include necessarily; to imply.