lack of qualified lack of quality lack of rain lack of rainfall lack of raw lack of reaction lack of real lack of realism lack of reciprocity lack of recognition lack of regular lack of regulation lack of relevant lack of reliability lack of reliable lack of reliable data lack of religious lack of remorse lack of representation lack of research lack of resistance lack of resources lack of respect lack of response lack of responsibility lack of rest lack of results lack of rules lack of safety lack of sales lack of saliva lack of sanitation lack of scientific lack of security lack of self lack of self-confidence lack of self-control lack of self-esteem lack of self-worth lack of sense lack of sensitivity lack of service lack of services lack of sex lack of significant lack of skill lack of skilled lack of skills lack of sleep lack of sleep affects lack of sleep can lack of sleep can affect lack of sleep has lack of sleep may lack of snow lack of social lack of social support lack of solidarity lack of something lack of space lack of spare lack of specific lack of specificity lack of speed lack of spiritual lack of sponsorship lack of stability lack of staff lack of standardisation lack of standardization lack of standards lack of state lack of statistical lack of statistics lack of storage lack of strategic lack of strategy lack of strength lack of strong lack of structural lack of structure lack of studies lack of success lack of sufficient lack of suitable lack of sun lack of sunlight lack of supervision lack of supplies lack of supply lack of support lack of surprise lack of sympathy lack of tact lack of talent lack of taste lack of technical lack of technology lack of them