letteral for d.
- x1 is the beeturia/red-dyed urine of x2 containing pigment/dye/coloring substance x3.
- x1 is a quantity of/contains/is made of dysprosium [Dy]
- v1=x1 is a rotavirus of species/breed/defining property v2 capable of infecting [at] v3.
- x1 is a voiced alveolar stop sound produced by x2.