Laser-cutting equipment must be totally enclosed to be safe for human operators.
( ( Laser-cutting equipment ) ( ( must ( be ( totally ( enclosed ( to ( be ( safe ( for ( human operators ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (JJ Laser-cutting) (NN equipment)) (VP (MD must) (VP (VB be) (VP (ADVP (RB totally)) (VBN enclosed) (S (VP (TO to) (VP (VB be) (ADJP (JJ safe) (PP (IN for) (NP (JJ human) (NNS operators)))))))))) (. .)))
It is dangerous to operate laser-cutting machines as-is without a containment method.
( It ( ( is ( dangerous ( to ( ( operate ( laser-cutting ( machines as-is ) ) ) ( without ( a ( containment method ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP It)) (VP (VBZ is) (ADJP (JJ dangerous) (S (VP (TO to) (VP (VB operate) (NP (JJ laser-cutting) (NNS machines) (NNS as-is)) (PP (IN without) (NP (DT a) (NN containment) (NN method)))))))) (. .)))