Instruction: Check the details of the two products to see if they refer to the same product. Output only yes or no.

Input:
Product 1:
title: jumpstart advanced 1st grade v2.0
description: jump start advanced 1st grade ensures the mastery of fundamentals in reading math and more. prepare your child for 1st grade and beyond with this 4-cd set!disc one: fundamentals - build essential 1st grade skills. learn skills in math reading spelling and more. includes an introduction to 2nd grade concepts.disc...
manufacturer: knowledge adventure
price: 19.99

Product 2:
title: jumpstart advanced 1st grade knowledge adventure
description: key features: four cd set enhances education over 50 skills reviewed special features ...
manufacturer: nan
price: 19.99
Answer: yes