Table 2 Semantic type frequency in final network

Amino acid, peptide, or protein

13

Body part, organ, or organ component

5

Biologically active substance

4

Cell

4

Hormone

4

Injury or poisoning

4

Organic chemical

3

Neuroreactive substance or biogenic amine

2

Animal

1

Cell component

1

Gene or genome

1

Inorganic chemical

1

Mammal

1

Pharmacologic substance

1

Patient or disabled group

1

Sign or symptom

1

Steroid

1

Tissue

1