Her normal action allows her to pick up a single marker and carry it to another location.

Her normal action allows her to pick up and move a single marker.

His normal action allows him to pick up and move a single marker.

With a single marker and a large number of subjects, there is usually no concern with overfitting.

There was a single marker for Pyongyang; other towns and locations were identified only when using the search box.

A single marker stands vigil on the sod that has grown over the foundation.

The airmen argued that they couldn't funnel all the bombers through the narrow corridor created by using a single marker.

Chris Grayling's travel expenses seem more than a bit iffy to me - spot the single green marker in a sea of purple.

For boys in the same age group, a cluster of activities set the most risk-prone youths apart from their peers, but no single marker emerged.

Moreover, in many cases, scientists are trying to find not a single marker but several that could be used together to get a more accurate reading.