Infestation<br>Fred noticed tiny spiders in his room. But he thought they were harmless. But over time, he saw more spiders and started to worry. And he found a massive infestation of spiders under his house. It took days for an exterminator to get rid of all the spiders.
Fred underestimated the spiders at first
( z1 underestimate :ARG0 ( z2 person :name ( z3 name :op "Fred" ) ) :ARG1 ( z4 spider ) :time ( z5 at-first ) )