Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the

Sample selection. The red, green, blue and yellow points are the