Assertion: fingermark | /r/MadeOf | transparent materials
Facets:
Source sentences:
text: The glands on the palms of the hands and feet secrete different substances from those on other parts of the body; however, in many cases, due to regular contact with other areas, such as the face, fingermarks are composed of substances from both sources, in particular lipids, fatty acids, amino acids, vitamins and water.1 Fingermarks that are composed of opaque materials, e.g. blood, dirt, paint, are termed patent marks and are easily visible; however, fingermarks that are made of transparent materials, e.g. gland secretions, are termed latent marks and are not easily visible.