The following example illustrates the importance of querying. Before --> --> In the absence of sperm, the sperm samples [ are spun in a centrifuge to create a concentrated ‘pellet’ and examined further. [AL1] What do you mean? If there is an absence of sperm, how can you refer to sperm samples? After In the absence of sperm, the sperm semen ] samples [AL2] are spun in a centrifuge to create a concentrated ‘pellet’ and examined further. Sorry, I meant semen. [AL2] What do you mean? If there is an absence of sperm, how can you refer to sperm samples?