{HEAD ~ The magnetic switch} may further include, for example, {TAIL ~ a first switching contact} and a second switching contact 
include
{ HEAD ~ The magnetic switch } may further include , for example , { TAIL ~ a first switching contact } and a second switching contact
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH