Section 26D. (a) As used in this section, the term ''entice'' shall mean to lure, induce, persuade, tempt, incite, solicit, coax or invite.

(b) As used in this section, the term ''electronic communication'' shall include, but not be limited to, any transfer of signs, signals, writing, images, sounds, data or intelligence of any nature transmitted in whole or in part by a wire, radio, electromagnetic, photo-electronic or photo-optical system.

(c) Whoever, by electronic communication, knowingly entices a child under the age of 18 years, to engage in prostitution in violation of section 50 or section 53A of chapter 272, human trafficking in violation of section 50, 51, 52 or 53 or commercial sexual activity as defined in section 49, or attempts to do so, shall be punished by imprisonment in a house of correction for not more than 21/2 years or in the state prison for not more than 5 years or by a fine of not less than $2,500, or by both such fine and imprisonment.

(d) Whoever, after having been convicted of, or adjudicated delinquent by reason of a violation of this section, commits a second or subsequent such violation, shall be punished by imprisonment in the state prison for not less than 5 years and by a fine of not less than $10,000. Such sentence shall not be reduced to less than 5 years, or suspended, nor shall any person convicted under this subsection be eligible for probation, parole, work release or furlough or receive any deduction from the sentence for good conduct until that person has served 5 years of such sentence.