You will be given a definition of a task first, then some input of the task.
Categorize the comment on the basis of severe toxicity. If the comment is severely toxic output Yes, otherwise output No.

The concept of waste heat being beneficial is a red herring for a large part.  A 60W bulb generates 3.3 BTU of heat per watt or ~200 BTU total.  The best generators are 25% - 30% efficient so your 60 watt bulb requires 600 BTU worth of diesel fuel to power.  A 60 watt equivalent LED uses 10 watts/33 BTU total so requires ~100 Diesel BTU's to generate.  A decent diesel stove is 80+% efficient making it the heat source of choice.  Moreover, LED's by dint of less demand allow a smaller generating capacity or allow for an entire engine to be shut down if  the efficiencies in a community are scaled.  They also have proportionally less line loss from generator to bulb, aka distribution loss.  We were able to downsize a cabin from a 2kw Honda to a 1kw unit by converting first to CFL's then LED's with the bonus of being able to run an electric coffee pot with a few lights!
Output:
No