How to get vitamin d naturally<br>Learn how the sun creates vitamin d. Sunlight is a form of radiation that has two forms, ultraviolet a (uva) and ultraviolet b (uvb) radiation. Your main source of vitamin d occurs when uvb radiation strikes your skin. When this happens, the first steps of vitamin d synthesis in your body is triggered.
sunlight comes in less than 5 forms
Sunlight is said to come in 2 forms which is assuredly less than 5
( z0 come :ARG1 ( z1 sunlight ) :ARG3 ( z2 form :quant ( z3 less-than :op 5 ) ) )
(z0 / come-01
    :ARG1 (z1 / sunlight)
    :ARG3 (z2 / form
              :quant (z3 / less-than
                         :op1 5)))
sunlight comes in less than 5 forms
z0 :ARG1 z1
z3 :op1 0
z2 :quant z3
z0 :ARG3 z2