( ( ( ( Biological pollutants ) , ) ( including ( molds ( , ( bacteria ( , ( pollen ( , ( dust ( mites ( and ( animal dander ) ) ) ) ) ) ) ) ) ) ) ) ( ( ( ( ( ( promote ( poor ( indoor ( air quality ) ) ) ) and ) ( may ( be ( ( a ( major cause ) ) ( of ( days ( lost ( from ( ( work and ) school ) ) ) ) ) ) ) ) ) , ) ( according ( to ( the ( American ( Lung Association ) ) ) ) ) ) . ) )
(ROOT (S (NP (NP (JJ Biological) (NNS pollutants)) (, ,) (PP (VBG including) (NP (NNS molds) (, ,) (NNS bacteria) (, ,) (NN pollen) (, ,) (NN dust) (NNS mites) (CC and) (NN animal) (NN dander)))) (VP (VP (VBP promote) (NP (JJ poor) (NX (JJ indoor) (NN air) (NN quality)))) (CC and) (VP (MD may) (VP (VB be) (NP (NP (DT a) (JJ major) (NN cause)) (PP (IN of) (NP (NP (NNS days)) (VP (VBN lost) (PP (IN from) (NP (NN work) (CC and) (NN school))))))))) (, ,) (PP (VBG according) (PP (TO to) (NP (DT the) (NNP American) (NNP Lung) (NNP Association))))) (. .)))
Biological pollutants, including molds, bacteria, pollen, dust mites and animal dander promote poor indoor air quality and may be a major cause of days lost from work and school, according to the American Lung Association.
(ROOT (S (NP (NP (NNS Molds)) (, ,) (NP (NN pollen)) (, ,) (CC and) (NP (JJ pet) (NN dander))) (VP (VBP are) (NP (NP (NNS examples)) (PP (IN of) (NP (NP (NN air) (NN pollution)) (PP (IN with) (NP (JJ biological) (NNS sources))))))) (. .)))