People like these often get bored listening to the tour guides lectures that sometimes resemble a monologue learned by heart for a class .
People like these often get bored listening to tour guides ' lectures that sometimes resemble a monologue learned by heart for a class . People often get bored while listening to the tour guides ' lectures that sometimes resemble a monologue learned by heart for a class . People like this often get bored listening to the tour guides ' lectures that sometimes resemble a monologue learned by heart for a class . People like this often get bored listening to the tour guides ' lectures , which sometimes resemble a monologue learned by heart for a class .