A structure is a building of some sort; since a string is not a building of any sort, it cannot be a structure. The best genus word is "tool." Made the appropriate change.
{{Short description|Flexible structure made from fibers twisted together}}
'''String''' is a long flexible [[tool]]material made from [[fiber]]s twisted together into a single strand, or from multiple such strands which are in turn twisted together. String is used to tie, bind, or hang other objects. It is also used as a material to make things, such as textiles, and in arts and crafts. String is a simple tool, and its use by humans is known to have been developed tens of thousands of years ago.<ref name="Evans and Webster">Susan Toby Evans, David L. Webster, ''Archaeology of Ancient Mexico and Central America: An Encyclopedia'' (2013), p. 812.</ref> In [[Mesoamerica]], for example, string was invented some 20,000 to 30,000 years ago, and was made by twisting plant fibers together.<ref name="Evans and Webster"/> String may also be a component in other tools, and in devices as diverse as weapons, musical instruments, and toys. [[File:Blue+Red String Under Microscope (40x).jpg|thumb|Two pieces of string under a light microscope]]
